Two times one number added to three times a second number is 21. The second number is ten less

Question

Two times one number added to three times a second number is 21.
The second number is ten less than five times the first number.

Write a system of equations to model this situation and solve.

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Latifah 6 hours 2021-07-22T11:23:12+00:00 1 Answers 0 views 0

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    2021-07-22T11:24:53+00:00

    Answer:

    Step-by-step explanation:

    “Two times one number added to three times a second number is 21.

    2x + 3y = 21

    “The second number is ten less than five times the first number”

    y = 5x-10

    Substitution

    2x+3(5x-10) = 21

    2x + 15x – 30 = 21

    17x = 51

    x = 3

    y = 5x-10 = 5

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