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Yesterday, 00:35

Solve the system

4x+2y=7

y=5x

I keep getting 1/2 and 5/2 but there not one of my answer choices.

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Answers (1)
  1. Yesterday, 03:42
    0
    Work:

    4x+2y=7

    Y=5x

    Solve by substitution

    4x+2 (5x) = 7

    Distribute

    4x+10x=7

    Add

    14x=7

    Divide

    X=1/2

    Solve for y

    Y=5 (1/2)

    Y=5/2

    Answer: x=1/2 y=5/2

    Check your work:

    plug in answers

    4 (1/2) + 2 (5/2) = 7

    Distribute

    2+5=7

    7=7

    Answer is correct

    let me know your answer choices that you have
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