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26 August, 20:29

State which method you would use to solve the following system of equations

substitution, elimination) and justify your reasoning. Then solve the system.

X-y=-2

2x + 4y = 38

Which method would you use?

Why?

Solve the system ...

+5
Answers (1)
  1. 27 August, 00:02
    0
    Elimination

    first i would divide the second equation by - 2.

    x - y = - 2

    -x - 2y = - 19

    the x is eliminated.

    -3y = - 21

    divide each side by - 3.

    y = 7

    plug 7 in for y to solve for x

    x-7 = - 2

    x = 5

    (5,7)
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