連立方程式L3-分数小数1(8問)
0.3x+0.8y=1.9 34x-12y=-14
解答○ ×答: x=1 y=2
52x-43y=-113 -0.1x+0.8y=-0.6
解答○ ×答: x=-2 y=-1
-23x-14y=32 1.6x+0.9y=-3
解答○ ×答: x=-3 y=2
-115x+12y=-73 0.2x+1.2y=-3.8
解答○ ×答: x=5 y=-4
1.4x-2.1y=-3.5 -16x+23y=56
解答○ ×答: x=-1 y=1
2.1x+1.2y=6.9 910x-56y=7
解答○ ×答: x=5 y=-3
-0.9x+0.5y=-2.9 65x+12y=-45
解答○ ×答: x=1 y=-4
34x-52y=132 0.2x-0.7y=1.8
解答○ ×答: x=2 y=-2
問題と解答
0.3x+0.8y=1.9 34x-12y=-14 答: x=1, y=2 52x-43y=-113 -0.1x+0.8y=-0.6 答: x=-2, y=-1 -23x-14y=32 1.6x+0.9y=-3 答: x=-3, y=2 -115x+12y=-73 0.2x+1.2y=-3.8 答: x=5, y=-4 1.4x-2.1y=-3.5 -16x+23y=56 答: x=-1, y=1 2.1x+1.2y=6.9 910x-56y=7 答: x=5, y=-3 -0.9x+0.5y=-2.9 65x+12y=-45 答: x=1, y=-4 34x-52y=132 0.2x-0.7y=1.8 答: x=2, y=-2
