14+21=7x-7

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Solution for 14+21=7x-7 equation: 



14+21=7x-7

We move all terms to the left:

14+21-(7x-7)=0

We add all the numbers together, and all the variables

-(7x-7)+35=0

We get rid of parentheses

-7x+7+35=0

We add all the numbers together, and all the variables

-7x+42=0

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

-7x=-42

x=-42/-7

x=+6

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