x+90+(x-10)=180

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Solution for x+90+(x-10)=180 equation: 



x+90+(x-10)=180

We move all terms to the left:

x+90+(x-10)-(180)=0

We add all the numbers together, and all the variables

x+(x-10)-90=0

We get rid of parentheses

x+x-10-90=0

We add all the numbers together, and all the variables

2x-100=0

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

2x=100

x=100/2

x=50

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