180=40-2x

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Solution for 180=40-2x equation: 



180=40-2x

We move all terms to the left:

180-(40-2x)=0

We add all the numbers together, and all the variables

-(-2x+40)+180=0

We get rid of parentheses

2x-40+180=0

We add all the numbers together, and all the variables

2x+140=0

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

2x=-140

x=-140/2

x=-70

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