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18 May, 15:05

Two brothers are saving money to buy tickets to a concert. their combined saving is $55 one brother has $15 more than the other. How much has each saved?

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  1. 18 May, 16:11
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    Brother one: x

    Brother two: x + 15

    ---

    Make them add up to 55 in an equation.

    x + (x + 15) = 55

    Combine like terms.

    2x + 15 = 55

    Subtract 15 from both sides.

    2x = 40

    Divide both sides by 2.

    x = 20

    Plug 20 for x into brother two.

    (20) + 15 = 35

    Brother one has saved $20, brother two has saved $35.
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