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8 March, 16:54

11x+4y=-46

7x-4y=10

Find x and y

+1
Answers (1)
  1. 8 March, 20:27
    0
    Answer:x=-2 y=-6

    Step-by-step explanation:

    11x+4y=-46 ... (1)

    7x-4y=10 ... (11)

    Add (1) and (11)

    11x+7x+4y-4y=-46+10

    18x=-36

    Divide both sides by 18

    18x/18=-36/18

    x=-2

    substitute x=-2 in (11)

    7x-4y=10

    7 (-2) - 4y=10

    -14-4y=10

    Collect like terms

    4y=-14-10

    4y=-24

    Divide both sides by 4

    4y/4=-24/4

    y=-6
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