180-x=2(90-x)-3

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Solution for 180-x=2(90-x)-3 equation: 



180-x=2(90-x)-3

We move all terms to the left:

180-x-(2(90-x)-3)=0

We add all the numbers together, and all the variables

-x-(2(-1x+90)-3)+180=0

We add all the numbers together, and all the variables

-1x-(2(-1x+90)-3)+180=0



We calculate terms in parentheses: -(2(-1x+90)-3), so:

2(-1x+90)-3

We multiply parentheses

-2x+180-3

We add all the numbers together, and all the variables

-2x+177

Back to the equation:

-(-2x+177)



We get rid of parentheses

-1x+2x-177+180=0

We add all the numbers together, and all the variables

x+3=0

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

x=-3

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