7(3x-3)=231

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Solution for 7(3x-3)=231 equation: 



7(3x-3)=231

We move all terms to the left:

7(3x-3)-(231)=0

We multiply parentheses

21x-21-231=0

We add all the numbers together, and all the variables

21x-252=0

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

21x=252

x=252/21

x=12

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