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2(-2+a)=-38
We move all terms to the left:
2(-2+a)-(-38)=0
We add all the numbers together, and all the variables
2(a-2)-(-38)=0
We add all the numbers together, and all the variables
2(a-2)+38=0
We multiply parentheses
2a-4+38=0
We add all the numbers together, and all the variables
2a+34=0
We move all terms containing a to the left, all other terms to the right
2a=-34
a=-34/2
a=-17
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