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2 February, 15:38

Use substitution to solve equation:

y=4x

x+y=5

+1
Answers (2)
  1. 2 February, 15:42
    0
    X=5

    y=0 ok you done bro
  2. 2 February, 15:50
    0
    Plug y = 4x in second equation:-

    x + 4x = 5

    5x - 5

    x = 1

    and y = 4*x = 4

    solution set is {1,4}
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