SOLUTION: 11k-7=4k+21

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Question 302012: 11k-7=4k+21
Answer by london maths tutor(243)   (Show Source): You can put this solution on YOUR website!
11k-7=4k+21
11k - 4k = 21 + 7
7k = 28
k = 28/7
k = 4

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