63-8x=42-x

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Solution for 63-8x=42-x equation: 



63-8x=42-x

We move all terms to the left:

63-8x-(42-x)=0

We add all the numbers together, and all the variables

-8x-(-1x+42)+63=0

We get rid of parentheses

-8x+1x-42+63=0

We add all the numbers together, and all the variables

-7x+21=0

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

-7x=-21

x=-21/-7

x=+3

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