Contact us
Choose a category below so we can get back to you as quickly as possible.
不對. 應該等於2分之1-8分之3x=5分之2x-5分之3
5*6=3X5+6=21 2*(4*8)=2*(3x4+8)=2*20=3x2+20=26
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.