Contact us
Choose a category below so we can get back to you as quickly as possible.
(b-2)/(a+1)=4 b-2=4(a+1) 4(a加1)分之3(b减2)加b减2分之3(a加1) =3×4(a+1)/4(a+1)+ 3(a+1)/4(a+1) =3+3/4 =3又4分之3
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.