90=5k+5k-10

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Solution for 90=5k+5k-10 equation:


k in (-oo:+oo)

90 = 5*k+5*k-10 // - 5*k+5*k-10

10-(5*k)-(5*k)+90 = 0

10-5*k-5*k+90 = 0

100-10*k = 0 // - 100

-10*k = -100 // : -10

k = -100/(-10)

k = 10

k = 10

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