k+7=4k-8

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Solution for k+7=4k-8 equation: 


k in (-oo:+oo)

k+7 = 4*k-8 // - 4*k-8

k-(4*k)+7+8 = 0

k-4*k+7+8 = 0

15-3*k = 0 // - 15

-3*k = -15 // : -3

k = -15/(-3)

k = 5

k = 5

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