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26 November, 17:11

Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x - 5y = - 2 & 2x + y = 3

A) Multiply first equation by - 3 and second equation by 2, solution (1, 1).

B) Multiply first equation by - 2 and second equation by 3, solution (1, 1).

C) Multiply first equation by - 3 and second equation by 2, solution (1, - 1).

D) Multiply first equation by - 2 and second equation by 3, solution (1, - 1).

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Answers (2)
  1. 26 November, 17:50
    0
    Answer:Its B

    Step-by-step explanation:

    You multiply 2 first and then 3.
  2. 26 November, 20:42
    0
    see explanation

    Step-by-step explanation:

    Given the 2 equations

    3x - 5y = - 2 → (1)

    2x + y = 3 → (2)

    Multiply (2) by 5 will eliminate y when added to (1), that is

    10x + 5y = 15 → (3)

    Add (1) and (3) term by term

    (3x + 10x) + ( - 5y + 5y) = ( - 2 + 15)

    13x = 13 (divide both sides by 13)

    x = 1

    Substitute x = 1 into (2) for corresponding value of y

    2 + y = 3 ⇒ y = 3 - 2 = 1

    Solution is (1, 1)
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