2k-1+6k=87

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Solution for 2k-1+6k=87 equation:


k in (-oo:+oo)

2*k+6*k-1 = 87 // - 87

2*k+6*k-87-1 = 0

8*k-88 = 0 // + 88

8*k = 88 // : 8

k = 88/8

k = 11

k = 11

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