## mikaa_toxica13 Group Title 16 = -d + 6 11 months ago 11 months ago

1. kewlgeek555 Group Title

I am not sure...I think it would still be 10...

2. kewlgeek555 Group Title

But tha negative sign confuses.

3. kewlgeek555 Group Title

No negative number plus six will get to sixteen.

4. petiteme Group Title

transpose 6 to the other side so -6 + 16 = -d Add like terms 10 = -d d=-10 :)

5. mikaa_toxica13 Group Title

thanks can u help with another ??

6. kewlgeek555 Group Title

I might be able to.

7. mikaa_toxica13 Group Title

b - 3 over -5 = -15

8. kewlgeek555 Group Title

So is this what you are asking?:$\frac{ b-3 }{ -5 }=-15$

9. mikaa_toxica13 Group Title

yes

10. kewlgeek555 Group Title

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 Group Title

ok can u explain the steps ?

12. kewlgeek555 Group Title

This is what I did: (-15 * -5) + 3 = b = 78

13. kewlgeek555 Group Title

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 Group Title

Thanks ! -10 = 5 + z over -5

15. kewlgeek555 Group Title

$-10=\frac{ 5+2 }{ 5 }$$-10=(5+2)\div5$$(-10\times5)-5$$-50-5$$z=-55$

16. mikaa_toxica13 Group Title

13 = -8p - 3 + 9p

17. kewlgeek555 Group Title

I got 16, but based on my special calculator it is 4, so the answer is 4.

18. mikaa_toxica13 Group Title

Can u explain the steps

19. kewlgeek555 Group Title

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 Group Title

ok

21. kewlgeek555 Group Title

Yeah, I can't seem to figure out how I got that one wrong. :-/

22. mikaa_toxica13 Group Title

I'm thinking I have to multiply -8p and 9p since they are like terms

23. mikaa_toxica13 Group Title

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 Group Title

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 Group Title

But based on my calculator I am wrong.

26. kewlgeek555 Group Title

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 Group Title
28. mikaa_toxica13 Group Title

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 Group Title

that's probably why you're getting two different answers

30. kewlgeek555 Group Title

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 Group Title

Hm...I don't know. @campbell_st @savannaxx_ @Firejay5 might help. Let me check my special calculator.

32. mikaa_toxica13 Group Title

yeaa that's why. k thanks for the help

33. kewlgeek555 Group Title

Oh. So you are actually right. P = Always true, or all real numbers.

34. kewlgeek555 Group Title

You are very welcome.

35. Firejay5 Group Title

Thanks ! -10 = 5 + z over -5, the answer is actually 45 not -55

36. mikaa_toxica13 Group Title

Actually no. since it's a negative 55 u would do the opposite and add not subtract.

37. Firejay5 Group Title

no it's wrong $\frac{ z + 5 }{ -5 } = -10$

38. Firejay5 Group Title

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 Group Title

13 = -8p - 3 + 9p = x = 16

40. mikaa_toxica13 Group Title

actually the -10 is on the other side. whatever u say

41. Firejay5 Group Title

It's better for me to organize my variables

42. Firejay5 Group Title

either way you change it's still correct, but it's just switched

43. Firejay5 Group Title

I did this stuff in Algebra II you have to get the denominator to cancel out by multiplying

44. Firejay5 Group Title

plug -55 back into the regular equation and you will get 10 not -10