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1 March, 06:40

How do u solve

1*-2y=4

-1*+10y=8

+2
Answers (1)
  1. 1 March, 10:22
    0
    Answer: x = - 8; y = - 6

    Step-by-step explanation:

    1*x-2*y=4

    1*x = 4 + 2*y

    x = 4 + 2*y

    Now you replace the value of x on the following equation:

    -1*x+10*y=8

    -1 * (4 + 2*y) = 8

    -4 - 2*y = 8

    -2*y = 8+4

    -2*y = 12

    y = - 12/2

    y = - 6

    You replace the value of y in the previous equation:

    x = 4 + 2*y

    x = 4 + 2 * (-6)

    x = 4 - 12

    x = - 8
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