3k-9=-13+7k

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Solution for 3k-9=-13+7k equation: 


k in (-oo:+oo)

3*k-9 = 7*k-13 // - 7*k-13

3*k-(7*k)-9+13 = 0

3*k-7*k-9+13 = 0

4-4*k = 0 // - 4

-4*k = -4 // : -4

k = -4/(-4)

k = 1

k = 1

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