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becca9898

  • one year ago

Need help! Equation will be in the responses.

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  1. anonymous
    • one year ago
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    whats up?

  2. becca9898
    • one year ago
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    \[-7x+3 = \frac{ -15 }{ 2 }\]

  3. becca9898
    • one year ago
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    I am unsure where to start :/

  4. anonymous
    • one year ago
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    are you solving for just x? or simplifying?

  5. becca9898
    • one year ago
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    Solving for x

  6. anonymous
    • one year ago
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    alright well this is fairly simple.. haha give me a moment?

  7. becca9898
    • one year ago
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    Sure! :)

  8. anonymous
    • one year ago
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    alright so the first we want to isolate x, right?

  9. becca9898
    • one year ago
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    Correct, so would we minus 3/1 ?

  10. anonymous
    • one year ago
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    well not 3/1 but just 3

  11. becca9898
    • one year ago
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    I just figured the 3/1 because we have to subtract it from the -15/2... Would we have to multiply the 3/1 by 2 to have an equal denominator?

  12. anonymous
    • one year ago
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    so you will get -7x=-15/2-3

  13. anonymous
    • one year ago
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    and yes that would be another way to do it but either way you will get the same answer if you simplify -15/2-3

  14. anonymous
    • one year ago
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    do you see what im trying to say? haha

  15. becca9898
    • one year ago
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    So if I do -15/2-3 would it just be 15?

  16. anonymous
    • one year ago
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    what is -15/2 ?

  17. becca9898
    • one year ago
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    the problem is I cannot use decimals in this equation, they want me to keep fractions. So -15/2 would just be -15/2 because it cannot be simplified.

  18. anonymous
    • one year ago
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    alright sorry i didnt know that

  19. becca9898
    • one year ago
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    After doing the math -15/2 - 3/1 should come out to -9/2, right?

  20. anonymous
    • one year ago
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    a negative - a negative is?

  21. becca9898
    • one year ago
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    a positive?

  22. anonymous
    • one year ago
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    it is always a negative so -15-6=-21

  23. anonymous
    • one year ago
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    god im getting confused haha let me type the entire problem then ill explain it alright?

  24. becca9898
    • one year ago
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    OK :)

  25. anonymous
    • one year ago
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    -7x+3=-15/2 -7x=-15/2-3/1*2 "to combine these we need the same denominator so we multiply by two" -7x=-15/2-6/2 -7x=-21/2

  26. anonymous
    • one year ago
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    okay haha thats as far as i got now this is where you come in... we will simplify with decimals then replace them with fractions...

  27. anonymous
    • one year ago
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    -21/2=-10.5 -7x=-10.5

  28. anonymous
    • one year ago
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    divide by -7, isolating x

  29. anonymous
    • one year ago
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    x=-10.5/-7

  30. anonymous
    • one year ago
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    you get 1.5

  31. anonymous
    • one year ago
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    1.5= 3/2 so x=3/2

  32. becca9898
    • one year ago
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    Thank you!!

  33. anonymous
    • one year ago
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    haha is that one of you ranswers?

  34. anonymous
    • one year ago
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    no..... thank you, for bearing with me lol

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