Repeat the following procedure for the four given numbers.

Add 7
.
Double the result. Subtract 4
.
Divide by 2. Subtract the original selected number.
The 1st number is 1
.

The result is 5
.
The 2nd number is 4
.

The result is 5
.
The 3rd number is 7
.

The result is 5
.
The 4th number is 10
.

The result is 5
.
a. Write a conjecture that relates the result of the process to the original number selected. 

Repeat the following procedure for the four given numbers.?

Add7, double the result. Subtract 2. Divide by 2. Subtract the oringinal number

5n

In the given procedure for each number, you first add 7 to the original number. Then you double the result and subtract 4. Finally, you divide the final result by 2 and subtract the original selected number again.

Looking at the results of the procedure for the four given numbers (1, 4, 7, and 10), we can observe that each time the result is 5.

Based on this observation, we can make the following conjecture:

The result of the process is always 5, regardless of the original number selected.

When I added number to another number four times, the big result is 30?