60/(1-1/5-X/6)=200
问题描述:
60/(1-1/5-X/6)=200
x是自然数
X=?
60/(1-1/5-X/6)
X=?
答
60/(1-1/5-x/6)=200
200×(1-1/5-x/6)=60
200×1-200×1/5-200×x/6=60
200-40-100x/3=60
160-100x/3=60
100x/3=160-60
100x/3=100
100x=300
x=3