解方程:1/2×(1-1/2n+1)=17/35

问题描述:

解方程:1/2×(1-1/2n+1)=17/35

1/2×(1-1/2n+1)=17/35
1-1/2n+1=34/35
1/2n+1=1/35
2n+1=35
2n=34
n=17