8x-2-(-7x)=-9

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Solution for 8x-2-(-7x)=-9 equation: 



8x-2-(-7x)=-9

We move all terms to the left:

8x-2-(-7x)-(-9)=0

We add all the numbers together, and all the variables

8x-(-7x)+7=0

We get rid of parentheses

8x+7x+7=0

We add all the numbers together, and all the variables

15x+7=0

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

15x=-7

x=-7/15

x=-7/15

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