x+2x+(90+x)=180

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Solution for x+2x+(90+x)=180 equation: 



x+2x+(90+x)=180

We move all terms to the left:

x+2x+(90+x)-(180)=0

We add all the numbers together, and all the variables

x+2x+(x+90)-180=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x+x+90-180=0

We add all the numbers together, and all the variables

4x-90=0

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

4x=90

x=90/4

x=22+1/2

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