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11 February, 01:00

Solve for k.

18 = 10 + 2k

k =

+4
Answers (1)
  1. 11 February, 01:19
    0
    18 = 10 + 2k

    move 10 to the other side

    sign changes from + 10 to - 10

    18-10=10-10+2k

    18-10 = 2k

    8 = 2k

    divide by 2 to get k by itself

    8/2 = 2k/2

    Cross out 2 and 2, divide by 2 and then becomes 1*1*k = k

    k=8/2

    Answer: k = 4
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