SOLUTION: 3x/4-9=-6 3x/4 is a fraction. not a division sign. I tried a similar problem which was 2x/3-5=7 and the book says the answer is 18, but i got 13. I divided 3 on both sides, the

Question 775841: 3x/4-9=-6
3x/4 is a fraction. not a division sign.
I tried a similar problem which was 2x/3-5=7 and the book says the answer is 18, but i got 13. I divided 3 on both sides, then cancelled the 3 on the side with the variable and ended up with 2x-5=21. I'm not sure what I did wrong.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
3x/4-9=-6
3x/4 is a fraction. not a division sign.
I tried a similar problem which was 2x/3-5=7 and the book says the answer is 18, but i got 13. I divided 3 on both sides, then cancelled the 3 on the side with the variable and ended up with 2x-5=21. I'm not sure what I did wrong.

2x - 15 = 21 ------ Multiplying by LCD, 3

2x = 21 + 15

2x = 36

x = , or

You can do the check!!

You can now try to solve the 1st equation:

You then do a check!!

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