-15x-21=5x+79

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Solution for -15x-21=5x+79 equation: 



-15x-21=5x+79

We move all terms to the left:

-15x-21-(5x+79)=0

We get rid of parentheses

-15x-5x-79-21=0

We add all the numbers together, and all the variables

-20x-100=0

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

-20x=100

x=100/-20

x=-5

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