-2k+5=7

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Solution for -2k+5=7 equation: 


k in (-oo:+oo)

5-2*k = 7 // - 7

5-2*k-7 = 0

-2*k-2 = 0 // + 2

-2*k = 2 // : -2

k = 2/(-2)

k = -1

k = -1

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