みかん1個の値段をX円とする。
5X＋90＝3(X＋50)
5X＋90＝3X＋150
5X−3X＝150−90
2X＝60
X＝60÷2
X＝30
みかん1個…30円
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みかん1個の値段をX円とする。
5X＋90＝3(X＋50)
5X＋90＝3X＋150
5X−3X＝150−90
2X＝60
X＝60÷2
X＝30
みかん1個…30円
Users viewing this question
are also looking at these questions 😉
