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21 January, 12:52

Solve the system by Substitution.

3x-y=-1

y = 2x-1

+3
Answers (2)
  1. 21 January, 12:55
    0
    (-2,-5) ...
  2. 21 January, 13:16
    0
    1.) Fill in y=2x-1 into the first equation

    3x - (2x-1) = -1

    3x-2x+1=-1

    x+1=-1

    x=-2

    2.) Fill in x=-2 into y=2x-1

    y=2 (-2) - 1

    y=-4-1

    y=-5

    Your answer is (-2,-5) or x=-2 and y=-5
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