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-2-6a=30+2a
We move all terms to the left:
-2-6a-(30+2a)=0
We add all the numbers together, and all the variables
-6a-(2a+30)-2=0
We get rid of parentheses
-6a-2a-30-2=0
We add all the numbers together, and all the variables
-8a-32=0
We move all terms containing a to the left, all other terms to the right
-8a=32
a=32/-8
a=-4
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