(x+21)+(2x-18)=180

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Solution for (x+21)+(2x-18)=180 equation:


(x+21)+(2x-18)=180

We simplify the equation to the form, which is simple to understand 
(x+21)+(2x-18)=180

Remove unnecessary parentheses
x+21+(2x-18)=180

Remove unnecessary parentheses
+x+21+2x-18=+180

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=+180-21+18

We simplify left and right side of the equation. 
+3x=+177

We divide both sides of the equation by 3 to get x. 
x=59

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