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6 March, 21:51

A system of equations is shown below:

2x = 5y + 4

3x - 2y = - 16

What is the solution to this system of equations?

(-8, - 4)

(8, 4)

(-4, - 8)

(4, 8)

+5
Answers (1)
  1. 7 March, 00:15
    0
    (-8, - 4) is the solution

    Step-by-step explanation:

    Determine whether or not (-8, - 4) is a solution to this system. It is a solution if we can substitute - 8 for x and - 4 for y in both equations and find that both equations are true:

    2 (-8) = 5 (-4) + 4 TRUE

    3 (-8) - 2 (-4) = - 16 TRUE

    So (-8, - 4) is a solution to the given system.

    Check out the second possible solution in the same way:

    2 (8) = 5 (4) + 4 FALSE

    Check out the third possible sol'n in the same way:

    2 (-4) = 5 (4) + 4 FALSE

    Check out the fourth in the same way:

    2 (4) = 5 (8) + 4 FALSE

    So we conclude that (-8, - 4) is the sole solution to the given system.
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