x+x+(x+9)=180

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Solution for x+x+(x+9)=180 equation:


x+x+(x+9)=180

We simplify the equation to the form, which is simple to understand 
x+x+(x+9)=180

Remove unnecessary parentheses
+x+x+x+9=+180

We move all terms containing x to the left and all other terms to the right. 
+1x+1x+1x=+180-9

We simplify left and right side of the equation. 
+3x=+171

We divide both sides of the equation by 3 to get x. 
x=57

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