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8 October, 07:46

You went to lunch with your friend and the bill was $19 your lunch is three dollars more than your friends how much was your friends lunch

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Answers (2)
  1. 8 October, 07:48
    0
    Let x = cost of your friend's lunch.

    x + x + 3 = 19

    x = 8
  2. 8 October, 07:58
    0
    Your friend lunch bill is $8

    Step-by-step explanation:

    The bill for you and your friend lunch = $19

    Meaning the sum of your lunch bill and your friend bill is $19.

    To find how much your friend bill is,

    Let represent your friend bill to be x and your bill to be y.

    Therefore: x + y = $19

    Given that your bill is $3 more than your friend.

    Simple means; your bill = your friend bill + 3

    Since x represent your friend bill and y represent your bill

    So

    y = x + 3

    Therefore from: x + y = $19

    Substitute the value of y = x+3

    x + y = $19

    x + x + $3 = $19

    2x = $19 - $3

    2x = 16

    x = 16/2

    x = $8

    Since x = your friend bill.

    Therefore:.

    Your friend lunch bill is $8
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