-21=6x+2x+3

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Solution for -21=6x+2x+3 equation: 


x in (-oo:+oo)

-21 = 6*x+2*x+3 // - 6*x+2*x+3

-(6*x)-(2*x)-21-3 = 0

-6*x-2*x-21-3 = 0

-8*x-24 = 0 // + 24

-8*x = 24 // : -8

x = 24/(-8)

x = -3

x = -3

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