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11 April, 13:42

Find the x - and y - intercepts of the equation 7x + 14 y=28

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  1. 11 April, 14:05
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    Chapter : Linear equations

    Lesson : Math for Junior High School

    7x + 14y = 28

    if want to find x and y, we must substitution value 0 to the equation x and y:

    # If x = 0, then:

    7x + 14y = 28

    = 7 (0) + 14y = 28

    = 0 + 14y = 28

    = 14y = 28 → y = 28/14

    = y = 2

    # If y = 0, then:

    7x + 14y = 28

    = 7x + 14 (0) = 28

    = 7x + 0 = 28

    = 7x = 28 → x = 28 / 7

    = x = 4

    and that result was proven x = 4 and y = 2
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