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-7=12a-65
We move all terms to the left:
-7-(12a-65)=0
We get rid of parentheses
-12a+65-7=0
We add all the numbers together, and all the variables
-12a+58=0
We move all terms containing a to the left, all other terms to the right
-12a=-58
a=-58/-12
a=4+5/6
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