180=78+x+x

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Solution for 180=78+x+x equation: 



180=78+x+x

We move all terms to the left:

180-(78+x+x)=0

We add all the numbers together, and all the variables

-(2x+78)+180=0

We get rid of parentheses

-2x-78+180=0

We add all the numbers together, and all the variables

-2x+102=0

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

-2x=-102

x=-102/-2

x=+51

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