-2k-7=-9 - solution

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Solution for -2k-7=-9 equation:

k in (-oo:+oo)

-2*k-7 = -9 // + 9

9-2*k-7 = 0

2-2*k = 0 // - 2

-2*k = -2 // : -2

k = -2/(-2)

k = 1

k = 1

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