(5x-10)+(8x+21)=180

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Solution for (5x-10)+(8x+21)=180 equation: 



(5x-10)+(8x+21)=180

We move all terms to the left:

(5x-10)+(8x+21)-(180)=0

We get rid of parentheses

5x+8x-10+21-180=0

We add all the numbers together, and all the variables

13x-169=0

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

13x=169

x=169/13

x=13

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