Mathematics
Junior High
Resolved
至急！！連立方程式の問題です。式が分かりません。式を教えていただきたいです。よろしくお願いします。ちなみに⑴の答えは(x.y)=(4.-2)
⑷の答えは(x.y)=(-1.-8)デス
次の連立方程式を解きな
(1)(x+2y=0
7x +9y - 10 = 0
(4) (2(x+8) - y = 22
y = 9x + 1
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