8x+7=9x-8

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Solution for 8x+7=9x-8 equation: 



8x+7=9x-8

We move all terms to the left:

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

We get rid of parentheses

8x-9x+8+7=0

We add all the numbers together, and all the variables

-1x+15=0

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

-x=-15

x=-15/-1

x=+15

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