If I subtract 5 from three times a certain number the answer is 80 ?

Let's call the certain number x.

The equation can be written as: 3x - 5 = 80

Now, we can solve for x:

3x - 5 = 80
3x = 85
x = 85/3
x = 28.33

Therefore, the certain number is approximately 28.33.

Let x be the certain number.

Three times the certain number is 3x.

Subtracting 5 from three times the certain number is 3x - 5.

According to the given information, 3x - 5 = 80.

Solving for x:

3x = 80 + 5
3x = 85
x = 85 / 3
x = 28.333...

Therefore, the certain number is 28.333....