25%x+15=90=()(1+5/6)x=23/24=()x+35%x=27=()
问题描述:
25%x+15=90=()(1+5/6)x=23/24=()x+35%x=27=()
答
25%x+15=90
25%x=75
x=75÷0.25
x=300
(1+5/6)x=23/24
x=23/24÷11/6
x=23/44
x+35%x=27
1.35x=27
x=27÷1.35
x=20