(21-x)+(2x-3)+(x+5)=180

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Solution for (21-x)+(2x-3)+(x+5)=180 equation: 



(21-x)+(2x-3)+(x+5)=180

We move all terms to the left:

(21-x)+(2x-3)+(x+5)-(180)=0

We add all the numbers together, and all the variables

(-1x+21)+(2x-3)+(x+5)-180=0

We get rid of parentheses

-1x+2x+x+21-3+5-180=0

We add all the numbers together, and all the variables

2x-157=0

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

2x=157

x=157/2

x=78+1/2

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