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6 May, 08:49

3x+y=4

x+2y=-2

what is the answer

+5
Answers (1)
  1. 6 May, 09:20
    0
    2 (3x+y=4)

    1 (x+2y=-2)

    6x+2y=8

    (-) x+2y=-2

    5x=10

    5

    x=2

    x+2y=-1

    2+2y=-1

    -2 - 2

    2y=-3

    2

    y=-3/2

    Step-by-step explanation:

    multiply the first equation by 2 to make y equal to each other. subtract to eliminate y divide by 5 to get x take one of the equations replace x by 2 to solve for y
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