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28 May, 11:59

3x+y=17 4x-y=18 how can you order a ladder?

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  1. 28 May, 14:05
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    3x + y = 17

    4x - y = 18

    Add both the equations together.

    3x + 4x + y - y = 17 + 18

    7x = 35

    x = 5

    Plug in x = 5 into any equation, and solve for y.

    3 (5) + y = 17

    15 + y = 17

    y = 2

    Your solution is (5,2).

    How can you order a ladder?

    Call the rung number
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