5k-5=7k-7

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Solution for 5k-5=7k-7 equation: 


k in (-oo:+oo)

5*k-5 = 7*k-7 // - 7*k-7

5*k-(7*k)-5+7 = 0

5*k-7*k-5+7 = 0

2-2*k = 0 // - 2

-2*k = -2 // : -2

k = -2/(-2)

k = 1

k = 1

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