X+(3x+7)=55

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Solution for X+(3x+7)=55 equation: 



X+(3X+7)=55

We move all terms to the left:

X+(3X+7)-(55)=0

We get rid of parentheses

X+3X+7-55=0

We add all the numbers together, and all the variables

4X-48=0

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

4X=48

X=48/4

X=12

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