5+5k-k=-7 - solution

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

k in (-oo:+oo)

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

5*k-k+5+7 = 0

4*k+12 = 0 // - 12

4*k = -12 // : 4

k = -12/4

k = -3

k = -3

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