x/50-x/65=6怎么解
问题描述:
x/50-x/65=6怎么解
答
65(x/50)-50(x/65)=6
65x/3250-50x/3250=6
65x-50x=6*3250
15x=19500
x=1300
1300/50-1300/65=6
26-20=6