解〔5X+9(66-X)〕*82% =5X*85%+9(66-X)*80%
问题描述:
解〔5X+9(66-X)〕*82% =5X*85%+9(66-X)*80%
答
X =
15996/251
解〔5X+9(66-X)〕*82% =5X*85%+9(66-X)*80%
X =
15996/251