9-x-3x=1

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Solution for 9-x-3x=1 equation: 


x in (-oo:+oo)

9-x-(3*x) = 1 // - 1

9-x-(3*x)-1 = 0

9-x-3*x-1 = 0

8-4*x = 0 // - 8

-4*x = -8 // : -4

x = -8/(-4)

x = 2

x = 2

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