9x-40=8x+40

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Solution for 9x-40=8x+40 equation: 



9x-40=8x+40

We move all terms to the left:

9x-40-(8x+40)=0

We get rid of parentheses

9x-8x-40-40=0

We add all the numbers together, and all the variables

x-80=0

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

x=80

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