2x+3y=6和4x+6y=12
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2x+3y=6和4x+6y=12
2x+3y=6和4x+6y=12
2x+3y=6和4x+6y=12
2x+3y=6 ①
4x+6y=12 ②
①式x2得:4x+6y=12,与②式相等,所以条件不足,无法解……
题目有错吗?
x为0,y为2
没区别
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