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30(30-x)=240
We simplify the equation to the form, which is simple to understand
30(30-x)=240
Reorder the terms in parentheses
+(+900-30x)=240
Remove unnecessary parentheses
+900-30x=+240
We move all terms containing x to the left and all other terms to the right.
-30x=+240-900
We simplify left and right side of the equation.
-30x=-660
We divide both sides of the equation by -30 to get x.
x=22
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