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17 October, 14:47

Y=4x-9

y=x-3

asking another question

appreciate any answers

edit: find x and y

(x, y)

+3
Answers (2)
  1. 17 October, 17:49
    0
    4x-9=x-3

    4x=x+6

    3x=6

    x=2

    y = (2) - 3

    y = - 1

    Final answer: (2,-1)
  2. 17 October, 18:44
    0
    Solve by subsitution

    y=4x-9=y=x-3

    4x-9=x-3

    minus x both sides

    3x-9=-3

    add 9 to both sides

    3x=6

    divide by 3 both sides

    x=2

    sub ack

    y=x-3

    y=2-3

    y=-1

    x=2

    y=-1

    (x, y)

    (2,-1)
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