Another HW Elimination method Algbrea Grade 8

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5x+4y=-14   2x+8y=6          -14=-20y-7x   3+2x-y=0

3x+6y=6      -5x-20y= -15    10y+4=2x       3-7y=10x

Nov 20th, 2014

1)x=-4y/5-14/5   2)x=3-4y    3)y=7/10-7x/20   4)x=1/2y-3/2   5)x=2-2y  6)x=3-4y  7)y=1/5x-2/5  8)y=-1

Nov 20th, 2014

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