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susie went to the store. she spent half her money on groceries. she spent $13 on paper supplies. she still had 1/4 of the amount she began with. how much did she start with?

  • math word -

    Let x = the money she started with

    (3/4)x + 13 = x

    13 = x - (3/4)x

    13 = (1/4)x

    13 / (1/4) = x

    13 * (4/1) = x

    52 = x

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