75%x+35=90%-10

问题描述:

75%x+35=90%-10

转化得:0.75x+35=0.9-10
0.75x+35=-9.1
0.75x =-9.1-35
0.75x =-44.1
x =-44.1/0.75(计算器)
是90%x吗?