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120+7x=5(x+30)
We simplify the equation to the form, which is simple to understand
120+7x=5(x+30)
Reorder the terms in parentheses
120+7x=+(+5x+150)
Remove unnecessary parentheses
+120+7x=+5x+150
We move all terms containing x to the left and all other terms to the right.
+7x-5x=+150-120
We simplify left and right side of the equation.
+2x=+30
We divide both sides of the equation by 2 to get x.
x=15
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