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7(x+12)=30
We simplify the equation to the form, which is simple to understand
7(x+12)=30
Reorder the terms in parentheses
+(+7x+84)=30
Remove unnecessary parentheses
+7x+84=+30
We move all terms containing x to the left and all other terms to the right.
+7x=+30-84
We simplify left and right side of the equation.
+7x=-54
We divide both sides of the equation by 7 to get x.
x=-7.7142857142857
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