3(k-2)=5×k+2×k-18, k=?
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3(k-2)=5×k+2×k-18
3k - 6 = 5k + 2k - 18
3k - 6 = 7k - 18
18 - 6 = 7k - 3k
12 = 4k
? = k
3(k-2)=5×k+2×k-18
3k - 6 = 5k + 2k - 18
3k - 6 = 7k - 18
18 - 6 = 7k - 3k
12 = 4k
? = k