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What is the solution to this system of equations?

X + 2y = 4

| 2x-2y = 5

(3.-5)

(3.)

no solution

infinitely many solutions

+2
Answers (1)
  1. 1 April, 20:04
    0
    Answer:x=3 y=1/2

    Step-by-step explanation:

    x+2y=4

    2x-2y=5

    Add both equations together

    x+2x+2y-2y=4+5

    3x+0=9

    3x=9

    Divide both sides by 3

    3x/3=9/3

    x=3

    Substitute x=3 in x+2y=4

    x+2y=4

    3+2y=4

    Collect like terms

    2y=4-3

    2y=1

    Divide both sides by 2

    2y/2=1/2

    y=1/2
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