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k in (-oo:+oo)
-3*k-2 = 5*k-34 // - 5*k-34
34-3*k-(5*k)-2 = 0
34-3*k-5*k-2 = 0
32-8*k = 0 // - 32
-8*k = -32 // : -8
k = -32/(-8)
k = 4
k = 4
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