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連立A=B=C-3

連立A=B=C-3(8問)

x+4 = 3x+4y = 2y+2

解答○ ×
答: x=0  y=1

y = x+4y-2 = 2x+3y

解答○ ×
答: x=-1  y=1

2x+3y+1 = 3x+y = 2x-2y-14

解答○ ×
答: x=-5  y=-3

4x+3y = 2x+7y = -3x+4y+26

解答○ ×
答: x=4  y=2

x-y+3 = 5x-8y = 4x-18

解答○ ×
答: x=6  y=3

3x-2y = 5x+8 = 2y+9

解答○ ×
答: x=-1  y=-3

8x = -3x-2y+20 = x+y+15

解答○ ×
答: x=2  y=-1

2x+4y = x+3y-4 = 3x-2y-17

解答○ ×
答: x=-1  y=-3
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問題と解答

x+4 = 3x+4y = 2y+2答: x=0,  y=1 y = x+4y-2 = 2x+3y答: x=-1,  y=1 2x+3y+1 = 3x+y = 2x-2y-14答: x=-5,  y=-3 4x+3y = 2x+7y = -3x+4y+26答: x=4,  y=2 x-y+3 = 5x-8y = 4x-18答: x=6,  y=3 3x-2y = 5x+8 = 2y+9答: x=-1,  y=-3 8x = -3x-2y+20 = x+y+15答: x=2,  y=-1 2x+4y = x+3y-4 = 3x-2y-17答: x=-1,  y=-3

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