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25 October, 18:18

Is 7 a solution of 5x-3=12?

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Answers (2)
  1. 25 October, 18:56
    0
    If 7=x? No.

    5 (7) - 3=12

    35-3=12

    32=12

    32 ≠12 ... so no, it isn't.
  2. 25 October, 19:22
    0
    No

    5x-3=12

    Add 3 to each side of whole numbers

    5x=15

    Divide each side by 5

    x=3
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