Solve by elimination: 3x = y + 5, 5x – y = 11

Question

Solve by elimination: 3x = y + 5, 5x – y = 11

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Raelynn 1 week 2021-11-19T18:28:08+00:00 2 Answers 0 views 0

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    0
    2021-11-19T18:29:56+00:00

    Answer:

    x = 3 and y = 4 and here’s the step by step explained below

    Step-by-step explanation:

    Given a pair of linear equations such that,

    3x = y + 5 ..(1)

    5x – y = 11 .(2) To solve it by substitution method.

    Fron eqn (1), we have, => y = 3x -5

    Now, substituting this value in eqn (2), we get

    => 5x -(3x-5) = 11 => 5x – 3x +5 = 11

    => 2x = 11-5

    => 2x = 6

    => x = 6/2

    => x = 3

    Therefore, we have,

    => y = 3(3) – 5 =

    => y = 9-5

    => y = 4

    Hence, the values of x= 3 and y = 4.

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    0
    2021-11-19T18:30:07+00:00

    Answer:

    according to the question,

    3x = y + 5 ..(1)

    5x – y = 11 .(2)  by substitution method.

    Fron eqn (1), we have, => y = 3x -5

    Now, substituting this value in  2

    5x -(3x-5) = 11 => 5x – 3x +5 = 11

    2x = 11-5

    2x = 6

    x = 6/2

    x = 3

    so we will have

    y = 3(3) – 5 =

    y = 9-5

    y = 4

    therefore  the values of x= 3 and y = 4.

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