3(-7-7x)=-63

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Solution for 3(-7-7x)=-63 equation: 



3(-7-7x)=-63

We move all terms to the left:

3(-7-7x)-(-63)=0

We add all the numbers together, and all the variables

3(-7x-7)-(-63)=0

We add all the numbers together, and all the variables

3(-7x-7)+63=0

We multiply parentheses

-21x-21+63=0

We add all the numbers together, and all the variables

-21x+42=0

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

-21x=-42

x=-42/-21

x=+2

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