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連立A=B=C-2

連立A=B=C-2(8問)

2x+3y = -2x+9y = 2

解答○ ×
答: x=12  y=13

4x-6y = 8x-3y = -6

解答○ ×
答: x=-12  y=23

8x+3y = -4x+6y-8 = 3

解答○ ×
答: x=-14  y=53

12x+3y = 52x-13y-14 = -8

解答○ ×
答: x=2  y=-3

52x-14y = 43x-32y+2 = 16

解答○ ×
答: x=6  y=-4

34x-23y+1 = 23x-43y-1312 = 94

解答○ ×
答: x=-1  y=-3

-23x+32y+14 = -34x-23y-2512 = 112

解答○ ×
答: x=-2  y=-1

14x+43y+12 = 56x-29y-163 = -3

解答○ ×
答: x=2  y=-3
next

問題と解答

2x+3y = -2x+9y = 2x=12, y=13 4x-6y = 8x-3y = -6x=-12, y=23 8x+3y = -4x+6y-8 = 3x=-14, y=53 12x+3y = 52x-13y-14 = -8x=2, y=-3 52x-14y = 43x-32y+2 = 16x=6, y=-4 34x-23y+1 = 23x-43y-1312 = 94x=-1, y=-3 -23x+32y+14 = -34x-23y-2512 = 112x=-2, y=-1 14x+43y+12 = 56x-29y-163 = -3x=2, y=-3

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