-5x+51=x+21

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Solution for -5x+51=x+21 equation: 



-5x+51=x+21

We move all terms to the left:

-5x+51-(x+21)=0

We get rid of parentheses

-5x-x-21+51=0

We add all the numbers together, and all the variables

-6x+30=0

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

-6x=-30

x=-30/-6

x=+5

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