(1/1)*(9x/9x)-(1/9x)=8/9

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Solution for (1/1)*(9x/9x)-(1/9x)=8/9 equation: 


x in (-oo:+oo)

(1/1)*((9*x)/9)*x-((1/9)*x) = 8/9 // - 8/9

(1/1)*((9*x)/9)*x-((1/9)*x)-(8/9) = 0

((9*x)/9)*x+(-1/9)*x-8/9 = 0

x^2-1/9*x-8/9 = 0

DELTA = (-1/9)^2-(-8/9*1*4)

DELTA = 289/81

DELTA > 0

x = ((289/81)^(1/2)+1/9)/(1*2) or x = (1/9-(289/81)^(1/2))/(1*2)

x = 1 or x = -8/9

x in { -8/9, 1 }

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