Contact us
Choose a category below so we can get back to you as quickly as possible.
設小剛為5x,小明則為6x (6x-9):(5x+9)=3:4 3(5x+9)=4(6x-9) 15x+27=24x-36 24x-15x=27+36 9x=63 x=7 小剛:7乘5=35(張) 小明:7乘6=42(張)
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.