-7x-19=x+21

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Solution for -7x-19=x+21 equation: 



-7x-19=x+21

We move all terms to the left:

-7x-19-(x+21)=0

We get rid of parentheses

-7x-x-21-19=0

We add all the numbers together, and all the variables

-8x-40=0

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

-8x=40

x=40/-8

x=-5

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