7-8x=15-7x

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Solution for 7-8x=15-7x equation: 



7-8x=15-7x

We move all terms to the left:

7-8x-(15-7x)=0

We add all the numbers together, and all the variables

-8x-(-7x+15)+7=0

We get rid of parentheses

-8x+7x-15+7=0

We add all the numbers together, and all the variables

-1x-8=0

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

-x=8

x=8/-1

x=-8

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