(100-x=77)

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Solution for \(100-x=77\) equation: 



(100-x=77)

We move all terms to the left:

(100-x-(77))=0

We add all the numbers together, and all the variables

(-1x+23)=0

We get rid of parentheses

-1x+23=0

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

-x=-23

x=-23/-1

x=+23

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