3+2(-7a-4)=31-2a

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Solution for 3+2(-7a-4)=31-2a equation: 



3+2(-7a-4)=31-2a

We move all terms to the left:

3+2(-7a-4)-(31-2a)=0

We add all the numbers together, and all the variables

2(-7a-4)-(-2a+31)+3=0

We multiply parentheses

-14a-(-2a+31)-8+3=0

We get rid of parentheses

-14a+2a-31-8+3=0

We add all the numbers together, and all the variables

-12a-36=0

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

-12a=36

a=36/-12

a=-3

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