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15 July, 01:11

Mrs. Lin is planning her daughters birthday party. At parties r us the fee is $80 plus $10 per child. At birthday palace, the fee is $150 plus $5 per child. Write and solve an equation to determine how many children must be invited for the costs to be equal?

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  1. 15 July, 01:21
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    10x+80=5x+150 the answer is 14 children
  2. 15 July, 01:35
    0
    The answer is 14 kids:

    80 + 10x = 150 + 5x

    10x = 70 + 5x

    x = 14

    Check:

    80 + 10 (14) = 220

    150 + 5 (14) = 220
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