7x-2(-7x+3)=141

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Solution for 7x-2(-7x+3)=141 equation: 



7x-2(-7x+3)=141

We move all terms to the left:

7x-2(-7x+3)-(141)=0

We multiply parentheses

7x+14x-6-141=0

We add all the numbers together, and all the variables

21x-147=0

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

21x=147

x=147/21

x=7

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