-2(x+4)-3=-21

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Solution for -2(x+4)-3=-21 equation: 



-2(x+4)-3=-21

We move all terms to the left:

-2(x+4)-3-(-21)=0

We add all the numbers together, and all the variables

-2(x+4)+18=0

We multiply parentheses

-2x-8+18=0

We add all the numbers together, and all the variables

-2x+10=0

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

-2x=-10

x=-10/-2

x=+5

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