7.8一X=4.5 9.1除以X=2.67.8一X=4.5 9.1除以X=2.6

问题描述:

7.8一X=4.5 9.1除以X=2.6
7.8一X=4.5 9.1除以X=2.6

7.8一X=4.5
x=7.8-4.5
x=3.3
9.1除以X=2.6
x=9.1/2.6
x=91/26
x=7/2