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17 October, 10:52

What is the solution of the system of equations? y = - 5x + 6 y = - 3x - 4

A. (-1, - 1)

B. (5, - 19)

C. (-1.25, 12.25)

D. (-19, 5)

+5
Answers (2)
  1. 17 October, 12:48
    0
    The answer is B. (5,-19) because x=5 and y = - 19

    so - 5 (5) + 6=-19

    and - 3 (5) - 4=-19
  2. 17 October, 14:29
    0
    To find this use substitution. substitute - 3x-4 in for Y

    now you have

    -5x + 6 = - 3x - 4 add 5x and 4 to both sides

    10 = 2x divide by two on both sides

    x=5

    If you place 5 in where x is, you will get y = - 19

    The answer is B
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