Contact us
Choose a category below so we can get back to you as quickly as possible.
3x+8y=12 24x+64y=96 8x+3y=-1 24x+9y=-3 作差55y=99 y=9/5 x=-4/5
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.