summerjuly wrote:黃+紅=5黃/紅=4...(恕刪)
ian87 wrote:平時功課不好,但好歹...(恕刪)
Hellogoodmorning wrote:先別管幾朵花了WO...(恕刪)
kecin wrote:5-4 =1 一朵阿 有很難嗎
summerjuly wrote:黃+紅=5黃/紅=4我把它換成x(黃花)跟y(紅花)x=4yx+y=5 > 4y+y=5 > so y=1所以黃花=4朵紅花=1朵