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-(a+2)+8+4a=56
We move all terms to the left:
-(a+2)+8+4a-(56)=0
We add all the numbers together, and all the variables
4a-(a+2)-48=0
We get rid of parentheses
4a-a-2-48=0
We add all the numbers together, and all the variables
3a-50=0
We move all terms containing a to the left, all other terms to the right
3a=50
a=50/3
a=16+2/3
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