Contact us
Choose a category below so we can get back to you as quickly as possible.
設差為x,則減數=3x,被減數=x+3x=4x 4x+3x+x=880 8x=880 x=110 減數=3*110=330 減數是差的3倍 被減數-減數=差 被減數是差的4倍 被減數+減數+差=4*差+3*差+差=880 差=880/8=110 減數是3*110=330
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.