-20=5x-2x+1

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Solution for -20=5x-2x+1 equation: 


x in (-oo:+oo)

-20 = 5*x-(2*x)+1 // - 5*x-(2*x)+1

2*x-(5*x)-20-1 = 0

2*x-5*x-20-1 = 0

-3*x-21 = 0 // + 21

-3*x = 21 // : -3

x = 21/(-3)

x = -7

x = -7

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