Python 如何将一个数字除以索引中的数字？

我的程序应该回答ax=b形式的方程

    a = input("What is the part with the variable? ")
    b = input("What is the answer? ")
    print('the equation is', a , '=', b)
    letter = a[-1]
    number = a[0:-1]
    answer = b /= number
    print(letter,"=",answer)

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在第6行，我得到一个无效的语法错误。怎样才能回答这个方程呢？

一个快速的解决方案。注意，您需要从string更改输入的类型（我使用float，但integer也可以）

变量的部分是什么？25摄氏度

答案是什么？八,

方程为25c=8

c=0.32

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发生语法错误是因为python不知道如何处理“b/=number”

a = float(input("What is the part with the variable? "))
b = float(input("What is the answer? "))
print('the equation is',a,'* X =',b)

# solve the equation: aX = b for X
x = b/a

print("X =",x)

a = input("What is the part with the variable? ")
b = input("What is the answer? ")
print('the equation is', a , '=', b)
letter = a[-1]
number = a[0:-1]
answer =float(b)/float(number)
print(letter,"=",answer)

This is a better version of you code :
a = input("What is the part with the variable? ")
b = input("What is the left hand side of the equation? ")
print('the equation is {}x = {}'.format(a , b))
answer = float(b) /float(a) // convert the inputs to floats so it can accept mathematical operations 
print("x=",answer)