7(-6+x)=21

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



7(-6+x)=21

We move all terms to the left:

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

We add all the numbers together, and all the variables

7(x-6)-21=0

We multiply parentheses

7x-42-21=0

We add all the numbers together, and all the variables

7x-63=0

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

7x=63

x=63/7

x=9

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