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-216.32=8(3.2a-4)
We move all terms to the left:
-216.32-(8(3.2a-4))=0
We calculate terms in parentheses: -(8(3.2a-4)), so:We get rid of parentheses
8(3.2a-4)
We multiply parentheses
24a-32
Back to the equation:
-(24a-32)
-24a+32-216.32=0
We add all the numbers together, and all the variables
-24a-184.32=0
We move all terms containing a to the left, all other terms to the right
-24a=184.32
a=184.32/-24
a=-7+1.9615384615385/2.8846153846154
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