7-8x=9-10x7-8x=9-18x+10x=7+918x=1618x/18=16/18x≈0.89o(︶︿︶)o 唉\("▔□▔)/

问题描述:

7-8x=9-10x
7-8x=9-1
8x+10x=7+9
18x=16
18x/18=16/18
x≈0.89
o(︶︿︶)o 唉
\("▔□▔)/