7x-7-8x=15

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



7x-7-8x=15

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1x-22=0

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

-x=22

x=22/-1

x=-22

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