(2x-7)/25=(4x-13)/75
问题描述:
(2x-7)/25=(4x-13)/75
答
3(2x-7)=4x-13
6x-21=4x-13
2x=8
x=4
(2x-7)/25=(4x-13)/75
3(2x-7)=4x-13
6x-21=4x-13
2x=8
x=4