2/5x+1/10x-1/20x=20

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Solution for 2/5x+1/10x-1/20x=20 equation: 


x in (-oo:+oo)

(2/5)*x+(1/10)*x-((1/20)*x) = 20 // - 20

(2/5)*x+(1/10)*x-((1/20)*x)-20 = 0

(2/5)*x+(1/10)*x+(-1/20)*x-20 = 0

9/20*x-20 = 0 // + 20

9/20*x = 20 // : 9/20

x = 20/9/20

x = 400/9

x = 400/9

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