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-0.8-2.4=1.2a+18
We move all terms to the left:
-0.8-2.4-(1.2a+18)=0
We add all the numbers together, and all the variables
-(1.2a+18)-3.2=0
We get rid of parentheses
-1.2a-18-3.2=0
We add all the numbers together, and all the variables
-1.2a-21.2=0
We move all terms containing a to the left, all other terms to the right
-1.2a=21.2
a=21.2/-1.2
a=-17+0.8/1.2
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