-7(-6+3x)=-21

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Solution for -7(-6+3x)=-21 equation: 



-7(-6+3x)=-21

We move all terms to the left:

-7(-6+3x)-(-21)=0

We add all the numbers together, and all the variables

-7(3x-6)-(-21)=0

We add all the numbers together, and all the variables

-7(3x-6)+21=0

We multiply parentheses

-21x+42+21=0

We add all the numbers together, and all the variables

-21x+63=0

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

-21x=-63

x=-63/-21

x=+3

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