-21=4(x+4)+3

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Solution for -21=4(x+4)+3 equation: 



-21=4(x+4)+3

We move all terms to the left:

-21-(4(x+4)+3)=0



We calculate terms in parentheses: -(4(x+4)+3), so:

4(x+4)+3

We multiply parentheses

4x+16+3

We add all the numbers together, and all the variables

4x+19

Back to the equation:

-(4x+19)



We get rid of parentheses

-4x-19-21=0

We add all the numbers together, and all the variables

-4x-40=0

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

-4x=40

x=40/-4

x=-10

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