-2x-7-2x=21

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Solution for -2x-7-2x=21 equation: 



-2x-7-2x=21

We move all terms to the left:

-2x-7-2x-(21)=0

We add all the numbers together, and all the variables

-4x-28=0

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

-4x=28

x=28/-4

x=-7

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