7(x+7)+2x=31

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



7(x+7)+2x=31

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

2x+7x+49-31=0

We add all the numbers together, and all the variables

9x+18=0

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

9x=-18

x=-18/9

x=-2

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