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-3(3x-2)=87
We move all terms to the left:
-3(3x-2)-(87)=0
We multiply parentheses
-9x+6-87=0
We add all the numbers together, and all the variables
-9x-81=0
We move all terms containing x to the left, all other terms to the right
-9x=81
x=81/-9
x=-9
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