Identify term containing k, and write the coefficient of k in the expression Sm 3ky.
2) Add (m + 2n + 7) and (3m - 6n + 1) 3) Subtract 24xy - 10y 18x from 30xy + 12y - 14x
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=m+2n+7+3m-6n+1
=4m-4n+8
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