5%x+(240-x)×12.5%+9=300×8%怎么解(求过程)
5%x+(240-x)×12.5%+9=300×8%怎么解(求过程)
5%x+(240-x)×12.5%+9=300×8%怎么解(求过程)
5%x+(240-x)×12.5%+9=300×8%怎么解(求过程)
1,0.05x+(240-x)*0.125+9=300*0.08
2,0.05x+30-0.125x+9=24
3,
0.05x-0.125x=24-30-9
4,
-0.075x=-15
5,
x=200
简单求过程,拜托。等我写一下发给你