9a/10=a-2

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Solution for 9a/10=a-2 equation: 


a in (-oo:+oo)

(9*a)/10 = a-2 // - a-2

(9*a)/10-a+2 = 0

2-1/10*a = 0 // - 2

-1/10*a = -2 // : -1/10

a = -2/(-1/10)

a = 20

a = 20

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