3(-7+x)=-84

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Solution for 3(-7+x)=-84 equation: 



3(-7+x)=-84

We move all terms to the left:

3(-7+x)-(-84)=0

We add all the numbers together, and all the variables

3(x-7)-(-84)=0

We add all the numbers together, and all the variables

3(x-7)+84=0

We multiply parentheses

3x-21+84=0

We add all the numbers together, and all the variables

3x+63=0

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

3x=-63

x=-63/3

x=-21

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