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x+(2x+15)+2(2x+15)=550
We simplify the equation to the form, which is simple to understand
x+(2x+15)+2(2x+15)=550
Remove unnecessary parentheses
+x+2x+15+2+*(+2x+15+)=+550
Reorder the terms in parentheses
x2x+15+(+4x+30)=550
Remove unnecessary parentheses
+x+2x+15+4x+30=+550
We move all terms containing x to the left and all other terms to the right.
+1x+2x+4x=+550-15-30
We simplify left and right side of the equation.
+7x=+505
We divide both sides of the equation by 7 to get x.
x=72.142857142857
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