5k+9=4k+12

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Solution for 5k+9=4k+12 equation: 


k in (-oo:+oo)

5*k+9 = 4*k+12 // - 4*k+12

5*k-(4*k)-12+9 = 0

5*k-4*k-12+9 = 0

k-3 = 0 // + 3

k = 3

k = 3

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