2/5x-9/10x=1

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Solution for 2/5x-9/10x=1 equation: 


x in (-oo:+oo)

(2/5)*x-((9/10)*x) = 1 // - 1

(2/5)*x-((9/10)*x)-1 = 0

(2/5)*x+(-9/10)*x-1 = 0

-1/2*x-1 = 0 // + 1

-1/2*x = 1 // : -1/2

x = 1/(-1/2)

x = -2

x = -2

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