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19+9(a-9)=-35
We move all terms to the left:
19+9(a-9)-(-35)=0
We add all the numbers together, and all the variables
9(a-9)+54=0
We multiply parentheses
9a-81+54=0
We add all the numbers together, and all the variables
9a-27=0
We move all terms containing a to the left, all other terms to the right
9a=27
a=27/9
a=3
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