x-(5/9 x+5)=3/7x+11

问题描述:

x-(5/9 x+5)=3/7x+11
解这个方程

x-(5/9x+5)=3/7x+11 x-5/9x-5 =3/7x+11 4/9x-5 =3/7x+11 (4/9-3/7)x =11+5 1/63x =16 x=16*63 x=1008