x+2x+(70-x)=180

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Solution for x+2x+(70-x)=180 equation: 



x+2x+(70-x)=180

We move all terms to the left:

x+2x+(70-x)-(180)=0

We add all the numbers together, and all the variables

x+2x+(-1x+70)-180=0

We add all the numbers together, and all the variables

3x+(-1x+70)-180=0

We get rid of parentheses

3x-1x+70-180=0

We add all the numbers together, and all the variables

2x-110=0

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

2x=110

x=110/2

x=55

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