Mathematics
Junior High
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2元連立方程式を＋か－かを見分ける方法ありますか？
時
氏
名
$3.2元連立方程式の1(10点引き)
5x + 2y= 26 0
3x + 2y=6
…2
[解]
22= 20
入ー10
50+2リ=26
Line
CAMERA
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