7(3x+3)=126

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Solution for 7(3x+3)=126 equation: 



7(3x+3)=126

We move all terms to the left:

7(3x+3)-(126)=0

We multiply parentheses

21x+21-126=0

We add all the numbers together, and all the variables

21x-105=0

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

21x=105

x=105/21

x=5

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