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HW 9 linear answer

  1. a) 2x-y =7

    b) 9x+8y=6

    c) 3x-2y=-7

  2. a) 10x +5y=-7

    b) y=(4√3-8)x+4-4√3 , or y=(-4√3-8)x+4+4√3

  3. a=1

  4. 1/2

  5. a) x=2

    b) y=-8x+19

    c) y- 3 = -(7+5√2)(x-2)

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