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

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Solution for 2x+4(-4x-21)=0 equation: 



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

We multiply parentheses

2x-16x-84=0

We add all the numbers together, and all the variables

-14x-84=0

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

-14x=84

x=84/-14

x=-6

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