Question

方程题;4x+40%x=176列式计算;(1)某数比它本身的25%多15,这个数是多少?(2)甲数是160,乙数是140

Answer 1

4.4x-176

x=40

15/(1-25%)=20

(160-140)/160=12.5%

4.8/(1+20%)=4

1.1/(1-19%-26%)=2