連立方程式L3-分数小数2(8問)
2.5x+1.5y=10.5 54x-32y=34
解答○ ×答: x=3 y=2
72x-83y=76 -4.5x+2.1y=7.8
解答○ ×答: x=-5 y=-7
-53x-34y=-1 10.6x+6.5y=20.2
解答○ ×答: x=-3 y=8
-114x+27y=-3 1.25x+0.86y=-0.24
解答○ ×答: x=6 y=-9
2.4x-2.5y=-22 -57x+14y=327
解答○ ×答: x=-5 y=4
5.3x+3.1y=-2.3 215x-12y=6310
解答○ ×答: x=6 y=-11
-4.9x+2.8y=-11.2 195x+176y=-343
解答○ ×答: x=0 y=-4
114x-72y=50 4.55x+3.85y=5.6
解答○ ×答: x=8 y=-8
問題と解答
2.5x+1.5y=10.5 54x-32y=34 答: x=3, y=2 72x-83y=76 -4.5x+2.1y=7.8 答: x=-5, y=-7 -53x-34y=-1 10.6x+6.5y=20.2 答: x=-3, y=8 -114x+27y=-3 1.25x+0.86y=-0.24 答: x=6, y=-9 2.4x-2.5y=-22 -57x+14y=327 答: x=-5, y=4 5.3x+3.1y=-2.3 215x-12y=6310 答: x=6, y=-11 -4.9x+2.8y=-11.2 195x+176y=-343 答: x=0, y=-4 114x-72y=50 4.55x+3.85y=5.6 答: x=8, y=-8
