25% x + x = 35 这个方程咋解?
问题描述:
25% x + x = 35 这个方程咋解?
答
25% x + x = 35
0.25x + x = 35
(0.25 + 1)x = 35
1.25x = 35
x = 35 ÷ 1.25
x = 28