答表示

中2 連立方程式の解き方 _1

連立方程式を解け
x+3y=5 x+4y=7
x=-1, y=2
7x-y=35 10x+y=33
x=4, y=-7
2x-y=7 -x+3y=-6
x=3, y=-1
x=2y-1 x+5y=13
x=3, y=2
4x+3y=-15 -4x+5y=7
x=-3, y=-1
y=4x+2 7x+y=-9
x=-1, y=-2
7x-5y=17 2x-3y=-3
x=6, y=5
6x+7y=-3 8x-3y=-41
x=-4, y=3
4x+15y=-74 9x+10y=-24
x=4, y=-6
連立方程式を解け
x+3y=3 x+2y=1
x=-3, y=2
3x-y=22 5x+y=18
x=5, y=-7
x=-2y+5 x+3y=12
x=-9, y=7
y=-3x+1 9x+y=5
x=23, y=-1
2x-3y=31 -x+2y=-20
x=2, y=-9
x-6y=31 -4x+5y=9
x=-11, y=-7
2x-3y=-1 8x+3y=6
x=12, y=23
6x+7y=9 8x-2y=-5
x=-14, y=32
2x+7y=-9 4x+5y=-3
x=43, y=-53
解答 表示
x=-1, y=2
x=4, y=-7
x=3, y=-1
x=3, y=2
x=-3, y=-1
x=-1, y=-2
x=6, y=5
x=-4, y=3
x=4, y=-6
x=-3, y=2
x=5, y=-7
x=-9, y=7
x=23, y=-1
x=2, y=-9
x=-11, y=-7
x=12, y=23
x=-14, y=32
x=43, y=-53
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