180=78+45+x

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Solution for 180=78+45+x equation: 



180=78+45+x

We move all terms to the left:

180-(78+45+x)=0

We add all the numbers together, and all the variables

-(x+123)+180=0

We get rid of parentheses

-x-123+180=0

We add all the numbers together, and all the variables

-1x+57=0

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

-x=-57

x=-57/-1

x=+57

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