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5 November, 13:19

Solve for z.

5z - 3z = 18

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Answers (2)
  1. 5 November, 16:26
    0
    5z - 3z = 18

    2z = 18

    z = 9
  2. 5 November, 16:37
    0
    1: Combine like terms;

    5z-3z=2z

    2: 2z-18

    3: divide by 2 to isolate the variable; z=9
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