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26 September, 08:22

Solve for k. 8k + 2m = 3m + k

A) k = 70m

B) k = 7m

C) k = 7/m

D) k = m/7

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Answers (2)
  1. 26 September, 09:39
    0
    The correct answer is D
  2. 26 September, 10:57
    0
    8k+2m=3m+k

    minus k from both sides

    8k-1k+2m=3m+k-k

    7k+2m=3m+0

    7k+2m=3m

    minus 2m from both sides

    7k+2m-2m=3m-2m

    7k+0=1m

    7k=m

    divide both sides by 7

    k=m/7

    D is the answer
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