-16+21=-5(x+4)

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Solution for -16+21=-5(x+4) equation: 



-16+21=-5(x+4)

We move all terms to the left:

-16+21-(-5(x+4))=0

We add all the numbers together, and all the variables

-(-5(x+4))+5=0



We calculate terms in parentheses: -(-5(x+4)), so:

-5(x+4)

We multiply parentheses

-5x-20

Back to the equation:

-(-5x-20)



We get rid of parentheses

5x+20+5=0

We add all the numbers together, and all the variables

5x+25=0

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

5x=-25

x=-25/5

x=-5

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