2(5-5k)(5-8)/7(9k)

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Solution for 2(5-5k)(5-8)/7(9k) equation: 


k in (-oo:+oo)

9*k*((2*(5-8)*(5-(5*k)))/7) = 0

9*k*((2*(5-8)*(5-5*k))/7) = 0

(-6*9*k*(5-5*k))/7 = 0

( 5-5*k )

5-5*k = 0 // - 5

-5*k = -5 // : -5

k = -5/(-5)

k = 1

( 9*k )

9*k = 0 // : 9

k = 0

k in { 1, 0 }

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