x+2x+(40+x)=180

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Solution for x+2x+(40+x)=180 equation: 



x+2x+(40+x)=180

We move all terms to the left:

x+2x+(40+x)-(180)=0

We add all the numbers together, and all the variables

x+2x+(x+40)-180=0

We add all the numbers together, and all the variables

3x+(x+40)-180=0

We get rid of parentheses

3x+x+40-180=0

We add all the numbers together, and all the variables

4x-140=0

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

4x=140

x=140/4

x=35

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