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8 December, 09:08

When 8 is subtracted from Ollie's age, the result is the same as subtracting 16 from 3 times his age.

How old is Ollie?

years

+3
Answers (1)
  1. 8 December, 10:49
    0
    So

    ollie=x

    x-8=y

    y=3x-16

    subsitute y=3x-16 for y in the first equation so

    x-8=3x-16

    subtract x from both sides

    -8=2x-16

    add 16 to both sides

    8=2x

    divide both sides by 2

    4=x

    ollie is 4
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