80+(-130)=x

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Solution for 80+(-130)=x equation: 



80+(-130)=x

We move all terms to the left:

80+(-130)-(x)=0

We add all the numbers together, and all the variables

-1x-50=0

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

-x=50

x=50/-1

x=-50

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