-51=x-(21)

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Solution for -51=x-(21) equation: 



-51=x-(21)

We move all terms to the left:

-51-(x-(21))=0

We get rid of parentheses

-x+21-51=0

We add all the numbers together, and all the variables

-1x-30=0

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

-x=30

x=30/-1

x=-30

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