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-8(-2)=2(a-2)
We move all terms to the left:
-8(-2)-(2(a-2))=0
We add all the numbers together, and all the variables
-(2(a-2))+16=0
We calculate terms in parentheses: -(2(a-2)), so:We get rid of parentheses
2(a-2)
We multiply parentheses
2a-4
Back to the equation:
-(2a-4)
-2a+4+16=0
We add all the numbers together, and all the variables
-2a+20=0
We move all terms containing a to the left, all other terms to the right
-2a=-20
a=-20/-2
a=+10
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