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mikaa_toxica13

  • one year ago

16 = -d + 6

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  1. kewlgeek555
    • one year ago
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    I am not sure...I think it would still be 10...

  2. kewlgeek555
    • one year ago
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    But tha negative sign confuses.

  3. kewlgeek555
    • one year ago
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    No negative number plus six will get to sixteen.

  4. petiteme
    • one year ago
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    transpose 6 to the other side so -6 + 16 = -d Add like terms 10 = -d d=-10 :)

  5. mikaa_toxica13
    • one year ago
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    thanks can u help with another ??

  6. kewlgeek555
    • one year ago
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    I might be able to.

  7. mikaa_toxica13
    • one year ago
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    b - 3 over -5 = -15

  8. kewlgeek555
    • one year ago
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    So is this what you are asking?:\[\frac{ b-3 }{ -5 }=-15\]

  9. mikaa_toxica13
    • one year ago
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    yes

  10. kewlgeek555
    • one year ago
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    Okay, so really this is the same thing as being this:\[(b-3)\div-5=-15\]Now, like I said before - you have to work backwards. Do PEMDAS backwards. SADMEP. So if you do it correctly, it would come out b=78

  11. mikaa_toxica13
    • one year ago
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    ok can u explain the steps ?

  12. kewlgeek555
    • one year ago
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    This is what I did: (-15 * -5) + 3 = b = 78

  13. kewlgeek555
    • one year ago
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    Or, if you want to me to be more specific: (b - 3) / -5 = -15 (-15 * -5) + 3 = b 75 + 3 = b 78 = b

  14. mikaa_toxica13
    • one year ago
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    Thanks ! -10 = 5 + z over -5

  15. kewlgeek555
    • one year ago
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    \[-10=\frac{ 5+2 }{ 5 }\]\[-10=(5+2)\div5\]\[(-10\times5)-5\]\[-50-5\]\[z=-55\]

  16. mikaa_toxica13
    • one year ago
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    13 = -8p - 3 + 9p

  17. kewlgeek555
    • one year ago
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    I got 16, but based on my special calculator it is 4, so the answer is 4.

  18. mikaa_toxica13
    • one year ago
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    Can u explain the steps

  19. kewlgeek555
    • one year ago
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    I can't because when I tried to do it I actually did it wrong and checked my work with my special calculator and it said I was wrong so...let me see.

  20. mikaa_toxica13
    • one year ago
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    ok

  21. kewlgeek555
    • one year ago
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    Yeah, I can't seem to figure out how I got that one wrong. :-/

  22. mikaa_toxica13
    • one year ago
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    I'm thinking I have to multiply -8p and 9p since they are like terms

  23. mikaa_toxica13
    • one year ago
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    then it becomes 13 = -7 - 3 and then -72 - 3 which becomes -75 then multiply 13 and -75 giving me -975 hmm that seems way too high

  24. kewlgeek555
    • one year ago
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    This is what I thought: 13 = -8p - 3 + 9p I combine the like terms, which are -8p and 9p by adding 9 to -8 (because you always keep the sign before the number with the number), making the equation 13 = 1p - 3. From there I go to (13 + 3) / 1 Then 16 / 1 And 16 = p

  25. kewlgeek555
    • one year ago
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    But based on my calculator I am wrong.

  26. kewlgeek555
    • one year ago
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    But hey, if you have to show your work then if you put that then you'll be at least get 50% credit for trying to solve.

  27. mikaa_toxica13
    • one year ago
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    http://www.geteasysolution.com/13=-9p+13+9p

  28. mikaa_toxica13
    • one year ago
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    Simplifying 13 = -9p + 13 + 9p Reorder the terms: 13 = 13 + -9p + 9p Combine like terms: -9p + 9p = 0 13 = 13 + 0 13 = 13 Add '-13' to each side of the equation. 13 + -13 = 13 + -13 Combine like terms: 13 + -13 = 0 0 = 13 + -13 Combine like terms: 13 + -13 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions

  29. mikaa_toxica13
    • one year ago
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    that's probably why you're getting two different answers

  30. kewlgeek555
    • one year ago
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    Wow. I am actually about to leave my computer. Let me try my fastest. Okay, instead of 13 = 13 + 9p + 9p, I would do 13 = 9p + 9p + 13. Anywho, the next step would be combining like terms which would be -9 + 9 = 0p. 13 = 0p + 13. 13 - 13 = 0. 0 / 0 = p = ERROR.

  31. kewlgeek555
    • one year ago
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    Hm...I don't know. @campbell_st @savannaxx_ @Firejay5 might help. Let me check my special calculator.

  32. mikaa_toxica13
    • one year ago
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    yeaa that's why. k thanks for the help

  33. kewlgeek555
    • one year ago
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    Oh. So you are actually right. P = Always true, or all real numbers.

  34. kewlgeek555
    • one year ago
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    You are very welcome.

  35. Firejay5
    • one year ago
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    Thanks ! -10 = 5 + z over -5, the answer is actually 45 not -55

  36. mikaa_toxica13
    • one year ago
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    Actually no. since it's a negative 55 u would do the opposite and add not subtract.

  37. Firejay5
    • one year ago
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    no it's wrong \[\frac{ z + 5 }{ -5 } = -10\]

  38. Firejay5
    • one year ago
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    you have to multiply -5 to both sides to cancel out the denominator -10 * -5 = 50; then you have z + 5 = 50; substract 5 from both sides and you get z = 45

  39. Firejay5
    • one year ago
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    13 = -8p - 3 + 9p = x = 16

  40. mikaa_toxica13
    • one year ago
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    actually the -10 is on the other side. whatever u say

  41. Firejay5
    • one year ago
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    It's better for me to organize my variables

  42. Firejay5
    • one year ago
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    either way you change it's still correct, but it's just switched

  43. Firejay5
    • one year ago
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    I did this stuff in Algebra II you have to get the denominator to cancel out by multiplying

  44. Firejay5
    • one year ago
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    plug -55 back into the regular equation and you will get 10 not -10

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