-30=80-x

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Solution for -30=80-x equation: 



-30=80-x

We move all terms to the left:

-30-(80-x)=0

We add all the numbers together, and all the variables

-(-1x+80)-30=0

We get rid of parentheses

1x-80-30=0

We add all the numbers together, and all the variables

x-110=0

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

x=110

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