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15 February, 19:51

Write an equation to solve this problem:

Two brothers are saving money to but tickets to a concert. Their combined savings is $55. One brother has $15 more than the other. How much has he saved?

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  1. 15 February, 20:01
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    The answer to your question is: One has saved $35 and the other $20

    Step-by-step explanation:

    Data

    2 brothers

    combined savings = $55

    One brother has $15 more than the other

    x = savings of one brother

    y = savings of the other brother

    - Process

    Write an equation or two equations and solve it for x and y

    (1) x + y = 55

    (2) x = y + 15 Solve this system by substitution (2) in (1)

    y + 15 + y = 55

    2y = 55 - 15

    2y = 40

    y = 40/2

    y = $ 20

    x = 20 + 15

    x = $ 35
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