Question

solve the system of equations and choose the correct ordered pair 3x-4=26
2x+8y=-36

a.6,-2
b.2,-5
c.2,5
d.6,2

Answers

  1. Answer:
    b.2,-5
    Step-by-step explanation:
    I assume y is missing in the first equation, and the correct system is:
    3x – 4y = 26
    2x + 8y = -36
    Rewrite the first equation. Divide both sides of the second equation by 2 and write it below the first equation. Then add the equations.
        3x – 4y = 26
      –   x + 4y = -18
    ————————
         4x        = 8
    x = 2
    Now substitute 2 for x in the first original equation and solve for y.
    3(2) – 4y = 26
    -4y = 20
    y = -5
    Answer: (2, -5)

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