(2x-15)+(x+21)=180

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Solution for (2x-15)+(x+21)=180 equation: 



(2x-15)+(x+21)=180

We move all terms to the left:

(2x-15)+(x+21)-(180)=0

We get rid of parentheses

2x+x-15+21-180=0

We add all the numbers together, and all the variables

3x-174=0

We move all terms containing x to the left, all other terms to the right

3x=174

x=174/3

x=58

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