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20 October, 19:15

Solve by substitution

x=-3y-2

-4x-5y=8

+1
Answers (2)
  1. 20 October, 20:54
    0
    x = - 3y - 2

    -4x - 5y=8

    -4 (-3y - 2) - 5y = 8

    12y + 8 - 5y = 8

    7y + 8 = 8

    7y = 0

    y = 0

    x = - 3 (0) - 2

    x = - 2

    solutions (-2,0)
  2. 20 October, 21:30
    0
    The solution is (-2,0) did that in my head
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