連立方程式L2-小数2(8問)
0.6x+1.5y=-1.8 2.1x-0.5y=5.2
解答○ ×答: x=2 y=-2
2.1x-1.3y=-1.1 5.2x+0.9y=-19.2
解答○ ×答: x=-3 y=-4
4.8x-3.2y=30.4 10.5x+8.4y=35.7
解答○ ×答: x=5 y=-2
0.01x-1.02y=-4.11 0.3x-2.1y=-9.3
解答○ ×答: x=-3 y=4
-1.04x+2.04y=20.52 1.4x+0.8y=-2.8
解答○ ×答: x=-6 y=7
10.8x+10.2y=13.2 0.03x-0.24y=1.11
解答○ ×答: x=5 y=-4
0.05x+0.02y=-0.38 11.2x-10.5y=-25.2
解答○ ×答: x=-6 y=-4
1.02x-1.15y=-2.19 0.08x-1.03y=-8.63
解答○ ×答: x=8 y=9
問題と解答
0.6x+1.5y=-1.8 2.1x-0.5y=5.2 答: x=2, y=-2 2.1x-1.3y=-1.1 5.2x+0.9y=-19.2 答: x=-3, y=-4 4.8x-3.2y=30.4 10.5x+8.4y=35.7 答: x=5, y=-2 0.01x-1.02y=-4.11 0.3x-2.1y=-9.3 答: x=-3, y=4 -1.04x+2.04y=20.52 1.4x+0.8y=-2.8 答: x=-6, y=7 10.8x+10.2y=13.2 0.03x-0.24y=1.11 答: x=5, y=-4 0.05x+0.02y=-0.38 11.2x-10.5y=-25.2 答: x=-6, y=-4 1.02x-1.15y=-2.19 0.08x-1.03y=-8.63 答: x=8, y=9
