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10 January, 11:21

How do I solve this by using substitution? Y=3x-24

5x-y=28

Solving for x and y.

+2
Answers (2)
  1. 10 January, 14:05
    0
    Y=3x-24

    x=8+y/3 for y and x=y/5+28/5 for x

    5x-y=28

    x=y/5+28/5 for x and x = 8 + y/3 for y
  2. 10 January, 14:29
    0
    Plug in y=3x-24

    5x - (3x-24) = 28 combine your x

    2x+24=28

    Subtract2x=4

    Divide x=2

    Plugin to y equation

    Y = 3 (2) - 24

    Y=-18
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