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-5a-27=4(2-3a)
We move all terms to the left:
-5a-27-(4(2-3a))=0
We add all the numbers together, and all the variables
-5a-(4(-3a+2))-27=0
We calculate terms in parentheses: -(4(-3a+2)), so:We get rid of parentheses
4(-3a+2)
We multiply parentheses
-12a+8
Back to the equation:
-(-12a+8)
-5a+12a-8-27=0
We add all the numbers together, and all the variables
7a-35=0
We move all terms containing a to the left, all other terms to the right
7a=35
a=35/7
a=5
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