1/2x-1/4x=x-9

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Solution for 1/2x-1/4x=x-9 equation: 


x in (-oo:+oo)

(1/2)*x-((1/4)*x) = x-9 // - x-9

(1/2)*x-((1/4)*x)-x+9 = 0

(1/2)*x+(-1/4)*x-x+9 = 0

9-3/4*x = 0 // - 9

-3/4*x = -9 // : -3/4

x = -9/(-3/4)

x = 12

x = 12

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