-2(9+x)+4=28

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Solution for -2(9+x)+4=28 equation: 



-2(9+x)+4=28

We move all terms to the left:

-2(9+x)+4-(28)=0

We add all the numbers together, and all the variables

-2(x+9)+4-28=0

We add all the numbers together, and all the variables

-2(x+9)-24=0

We multiply parentheses

-2x-18-24=0

We add all the numbers together, and all the variables

-2x-42=0

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

-2x=42

x=42/-2

x=-21

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