-6x+6y=6 7x+2y=24 5x+y=9 -4x+9y=9 -3x+7y= -16 -7x+y= -19 16x-10y=10 8x+14y=4
-6x+3y=-12 8x+2y=30 10x-7y= -18 x-3y= -6 -9x+5y=16 -2x+3y= -19 -8x-6y=6 -6x-7y= -10
1) x=y-1 2)x=24/7-2y/7 3)x=9/5-1/5y
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