(3x+30)+(5x+20)+(x+40)=180

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Solution for (3x+30)+(5x+20)+(x+40)=180 equation: 



(3x+30)+(5x+20)+(x+40)=180

We move all terms to the left:

(3x+30)+(5x+20)+(x+40)-(180)=0

We get rid of parentheses

3x+5x+x+30+20+40-180=0

We add all the numbers together, and all the variables

9x-90=0

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

9x=90

x=90/9

x=10

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