-16=7x+x

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Solution for -16=7x+x equation: 



-16=7x+x

We move all terms to the left:

-16-(7x+x)=0

We add all the numbers together, and all the variables

-(+8x)-16=0

We get rid of parentheses

-8x-16=0

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

-8x=16

x=16/-8

x=-2

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