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17 November, 23:24

Solve using substitution

-3x-4y=-2

y=2x-5

+5
Answers (2)
  1. 17 November, 23:47
    0
    1) I) - 3X-4Y = - 2

    Y = 2X-5, substitute it in I

    -3X-4 (2X-5) = - 2 ⇒-3X-8X+20 = - 2⇒-11X = - 2-20 ⇒ (-1) - 11X = - 22 ⇒11X = 22⇒X = 22/11 ⇒X = 2
  2. 17 November, 23:49
    0
    -2/3,19/3. X=-2/3. Y=-19/3
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