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12 March, 23:54

Solve the system of linear equations below.

X+y=4

2x+3y=0

+3
Answers (1)
  1. 13 March, 01:44
    0
    X + y = 4 ... x = 4 - y

    2x + 3y = 0

    2 (4-y) + 3y = 0

    8 - 2y + 3y = 0

    -2y + 3y = 0 - 8

    y = - 8

    x + y = 4

    x - 8 = 4

    x = 4 + 8

    x = 12

    solution is : (12,-8)
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