2x+16=21-(-7x)

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Solution for 2x+16=21-(-7x) equation: 



2x+16=21-(-7x)

We move all terms to the left:

2x+16-(21-(-7x))=0



We calculate terms in parentheses: -(21-(-7x)), so:

21-(-7x)

determiningTheFunctionDomain
-(-7x)+21

We get rid of parentheses

7x+21

Back to the equation:

-(7x+21)



We get rid of parentheses

2x-7x-21+16=0

We add all the numbers together, and all the variables

-5x-5=0

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

-5x=5

x=5/-5

x=-1

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