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-39+5a=-7(-6-5)
We move all terms to the left:
-39+5a-(-7(-6-5))=0
We add all the numbers together, and all the variables
5a-39-(-7(-11))=0
We add all the numbers together, and all the variables
5a-116=0
We move all terms containing a to the left, all other terms to the right
5a=116
a=116/5
a=23+1/5
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