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Yesterday, 18:41

Which ordered pair is the solution to this system of equations?

LaTeX: x+2y=-1

x

+

2

y

=

-

1

LaTeX: x-3y=14

x

-

3

y

=

14

Group of answer choices

(14, 27)

(27, 14)

(-3, 5)

(5, - 3)

+2
Answers (2)
  1. Yesterday, 19:02
    0
    (5, - 3)

    Step-by-step explanation:

    Given the 2 equations

    x + 2y = - 1 → (1)

    x - 3y = 14 → (2)

    Subtracting (2) from (1) term by term will eliminate the term in x, that is

    (x - x) + (2y - ( - 3y)) = ( - 1 - 14)

    5y = - 15 (divide both sides by 5)

    y = - 3

    Substitute y = - 3 into either of the 2 equations

    Substituting into (1)

    x + 2 ( - 3) = - 1

    x - 6 = - 1 (add 6 to both sides)

    x = 5

    Solution is (5, - 3)
  2. Yesterday, 22:16
    0
    I think the answer is (27, 14)
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