Mathematics
Junior High
Resolved
どこが間違ってますか?
どこが間違ってるか見つけられなくて…💦
お願いします!
83x+y=12
13 (10-x-y)+y=15
30-3x-3y+y=5
-3x-2y=-25
[3x+y=12
+1-3x-2y=-25
-y=-13
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本当だ!ありがとうございます!!😭