2x-40=x+7

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Solution for 2x-40=x+7 equation: 



2x-40=x+7

We move all terms to the left:

2x-40-(x+7)=0

We get rid of parentheses

2x-x-7-40=0

We add all the numbers together, and all the variables

x-47=0

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

x=47

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