-2x+21+4x+21=-2

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Solution for -2x+21+4x+21=-2 equation: 



-2x+21+4x+21=-2

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x+44=0

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

2x=-44

x=-44/2

x=-22

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