連立A=B=C-7(8問)
12x-34y+1 = 32x-12y-1 = -14x+y+18
解答○ ×答: x=4 y=-8
43x+32y-2 = 53x-12y+3 = -12x+34y-6
解答○ ×答: x=-3 y=2
12x+32y-1 = 53x-12y+2 = 518x+23y-4
解答○ ×答: x=-6 y=-2
54x-23y-3 = 34x-89y+13 = 1312x+13y+43
解答○ ×答: x=8 y=-3
-512x-13y+54 = 12x+54y+34 = 38x+74y+94
解答○ ×答: x=4 y=-2
-14x+310y+12 = 16x-13y-72 = 56x+215y-52
解答○ ×答: x=2 y=-5
38x+54y-32 = -29x+56y-313 = 712x+34y-1
解答○ ×答: x=-12 y=-4
34x-y+53 = x-59y+2 = 112x+29y+8
解答○ ×答: x=4 y=-3
問題と解答
12x-34y+1 = 32x-12y-1 = -14x+y+18答: x=4, y=-8 43x+32y-2 = 53x-12y+3 = -12x+34y-6答: x=-3, y=2 12x+32y-1 = 53x-12y+2 = 518x+23y-4答: x=-6, y=-2 54x-23y-3 = 34x-89y+13 = 1312x+13y+43答: x=8, y=-3 -512x-13y+54 = 12x+54y+34 = 38x+74y+94答: x=4, y=-2 -14x+310y+12 = 16x-13y-72 = 56x+215y-52答: x=2, y=-5 38x+54y-32 = -29x+56y-313 = 712x+34y-1答: x=-12, y=-4 34x-y+53 = x-59y+2 = 112x+29y+8答: x=4, y=-3
