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9(x+2)=-81
We simplify the equation to the form, which is simple to understand
9(x+2)=-81
Reorder the terms in parentheses
+(+9x+18)=-81
Remove unnecessary parentheses
+9x+18=-81
We move all terms containing x to the left and all other terms to the right.
+9x=-81-18
We simplify left and right side of the equation.
+9x=-99
We divide both sides of the equation by 9 to get x.
x=-11
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