(2x+10)+(x+20)=90

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Solution for (2x+10)+(x+20)=90 equation: 



(2x+10)+(x+20)=90

We move all terms to the left:

(2x+10)+(x+20)-(90)=0

We get rid of parentheses

2x+x+10+20-90=0

We add all the numbers together, and all the variables

3x-60=0

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

3x=60

x=60/3

x=20

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