2x+7(-7+2x)=31

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Solution for 2x+7(-7+2x)=31 equation: 



2x+7(-7+2x)=31

We move all terms to the left:

2x+7(-7+2x)-(31)=0

We add all the numbers together, and all the variables

2x+7(2x-7)-31=0

We multiply parentheses

2x+14x-49-31=0

We add all the numbers together, and all the variables

16x-80=0

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

16x=80

x=80/16

x=5

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