Mathematics
Junior High
Resolved
解説お願いします。
(2) x,yについての連立方程式
である。 do for
a shopping list.
a =
イ
x+y=a
x + 4y = a +8
の解の比がxy = 1:2 のとき,
= (de - Dε) —
(dr + D)
shopping with ver?
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