63=7x+42

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Solution for 63=7x+42 equation: 



63=7x+42

We move all terms to the left:

63-(7x+42)=0

We get rid of parentheses

-7x-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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