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10 January, 23:39

Solve by substitution-5x+4y=22 x - 3y = 0A) No solution.

b. (6, 2)

c. Infinitely many solutions.

d. (-6, 2)

e. (-6, - 2)

+2
Answers (1)
  1. 11 January, 02:27
    0
    We want to use substitution to solve

    -5x + 4y = 22 (1)

    x - 3y = 0 (2)

    From (2), obtain

    x = 3y (3)

    Substitute (3) into (1).

    -5 (3y) + 4y = 22

    -15y + 4y = 22

    -11y = 22

    y = - 2

    From (3), obtain

    x = 3y = 3 * (-2) = - 6

    Answer: e. (-6, - 2)
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