180-x=2(90-x)+30

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Solution for 180-x=2(90-x)+30 equation: 



180-x=2(90-x)+30

We move all terms to the left:

180-x-(2(90-x)+30)=0

We add all the numbers together, and all the variables

-x-(2(-1x+90)+30)+180=0

We add all the numbers together, and all the variables

-1x-(2(-1x+90)+30)+180=0



We calculate terms in parentheses: -(2(-1x+90)+30), so:

2(-1x+90)+30

We multiply parentheses

-2x+180+30

We add all the numbers together, and all the variables

-2x+210

Back to the equation:

-(-2x+210)



We get rid of parentheses

-1x+2x-210+180=0

We add all the numbers together, and all the variables

x-30=0

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

x=30

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