Contact us
Choose a category below so we can get back to you as quickly as possible.
設黃色X顆,綠色X顆,紅色5X顆. 5X+X+X=161 7X=161 X=23 ∴5X=115 答:黃色和綠色各23顆,紅色115顆.
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.