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2-(-3a-8=1)
We move all terms to the left:
2-(-3a-8-(1))=0
We add all the numbers together, and all the variables
-(-3a-9)+2=0
We get rid of parentheses
3a+9+2=0
We add all the numbers together, and all the variables
3a+11=0
We move all terms containing a to the left, all other terms to the right
3a=-11
a=-11/3
a=-3+2/3
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