5x-9=-3x=12+15

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Solution for 5x-9=-3x=12+15 equation: 



5x-9=-3x=12+15

We move all terms to the left:

5x-9-(-3x)=0

We get rid of parentheses

5x+3x-9=0

We add all the numbers together, and all the variables

8x-9=0

We move all terms containing x to the left, all other terms to the right

8x=9

x=9/8

x=1+1/8

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