(3x+30)+(x+90)=180

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Solution for (3x+30)+(x+90)=180 equation: 



(3x+30)+(x+90)=180

We move all terms to the left:

(3x+30)+(x+90)-(180)=0

We get rid of parentheses

3x+x+30+90-180=0

We add all the numbers together, and all the variables

4x-60=0

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

4x=60

x=60/4

x=15

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