What is 21 divided by 2 + 1 times 5 mines 2 to the fourth power?

IT is 41.5 heres the steps

Step-by-step explanation:

first step 21 divided by 2 = 10.5

Then you do 10.5 + 1 = 11.5  

then you do 11.5 times 5 =  57.5

Then 2 times 2 times 2 times 2= 16

then 16 - 57.5 = 41.5 is your answer

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1