Question

解方程 求答案

x-25%x=18 19%x+18%x=185

Answer 1

解：x-25%x=18
x(1-25%)=18
x=18/75%
=24
19%x+18%x=185
x(19%+18%)=185
x=185/(37%)
x=500

Answer 2

1. x-25%x=18
0.75x=18
x=18/0.75=24
x=24
2. 19%x+18%x=185

0.37x=185
x=500

Answer 3

x-25%x=18
解：75%X=18
X=18÷75%
X=24

19%x+18%x=185
解：37%X=185
X=185÷37%
X=500

Answer 4

x-25%x=18
75%x=18
x=24

19%x+18%x=185
37%x=185
x500

Answer 5

x-25%x=18
（1-0.25）x=18
0.75x=18
x=18/0.75=24

19%x+18%x=185
(0.19+0.18)x=185
0.37x=185
x=185/0.37=500