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120+x+60+15+20=130+35+2x
We simplify the equation to the form, which is simple to understand
120+x+60+15+20=130+35+2x
We move all terms containing x to the left and all other terms to the right.
+1x-2x=+130+35-120-60-15-20
We simplify left and right side of the equation.
-1x=-50
We divide both sides of the equation by -1 to get x.
x=50
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