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8 May, 09:07

Y = 2x - 7

x + 2y = 1

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Answers (1)
  1. 8 May, 10:25
    0
    Easy

    y=2x-7

    sub 2x-7 for every y you se inother equation

    x+2 (2x-7) = 1

    x+4x-14=1

    5x-14=1

    add 14 both sides

    5x=15

    divide 5

    x=3

    sub back

    y=2x-7

    y=2 (3) - 7

    y=6-7

    y=-1

    (3,-1) is solution
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