(3x-10)+(90-x)=180

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Solution for (3x-10)+(90-x)=180 equation: 



(3x-10)+(90-x)=180

We move all terms to the left:

(3x-10)+(90-x)-(180)=0

We add all the numbers together, and all the variables

(3x-10)+(-1x+90)-180=0

We get rid of parentheses

3x-1x-10+90-180=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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