連立方程式L1-加減法6(8問)
4x+3y=-24 3x-2y=-1
解答○ ×答: x=-3 y=-4
3x-4y=23 2x+7y=-4
解答○ ×答: x=5 y=-2
4x-3y=-45 5x+8y=26
解答○ ×答: x=-6 y=7
5x-6y=-49 9x+4y=-29
解答○ ×答: x=-5 y=4
-3x+8y=-96 5x+6y=-14
解答○ ×答: x=8 y=-9
5x-2y=40 4x-3y=18
解答○ ×答: x=12 y=10
-7x+6y=33 9x-8y=-47
解答○ ×答: x=9 y=16
-5x-6y=3 3x+8y=51
解答○ ×答: x=-15 y=12
問題と解答
4x+3y=-24 3x-2y=-1 答: x=-3, y=-4 3x-4y=23 2x+7y=-4 答: x=5, y=-2 4x-3y=-45 5x+8y=26 答: x=-6, y=7 5x-6y=-49 9x+4y=-29 答: x=-5, y=4 -3x+8y=-96 5x+6y=-14 答: x=8, y=-9 5x-2y=40 4x-3y=18 答: x=12, y=10 -7x+6y=33 9x-8y=-47 答: x=9, y=16 -5x-6y=3 3x+8y=51 答: x=-15, y=12
