-21x+16=-7(1+3x)

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Solution for -21x+16=-7(1+3x) equation: 



-21x+16=-7(1+3x)

We move all terms to the left:

-21x+16-(-7(1+3x))=0

We add all the numbers together, and all the variables

-21x-(-7(3x+1))+16=0



We calculate terms in parentheses: -(-7(3x+1)), so:

-7(3x+1)

We multiply parentheses

-21x-7

Back to the equation:

-(-21x-7)



We get rid of parentheses

-21x+21x+7+16=0

We add all the numbers together, and all the variables

23!=0

There is no solution for this equation

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