Mathematics
Senior High
Resolved
答えが分からないです💦
問題
次の連立方程式の解を,下から選びなさ
い。
Ox=-2, y=2, z=1
Ox=1, y=-2, z=1
O
2x-y=-3
x+y=z=-2
x-y+2z=2
O
x=-1, y=1, z=2
x=-3, y=1, z=-1
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