One more than 3 times a number is the same as 5 times the number decreased by 15. Find the number

3n + 1 = 5n - 15

16 = 2n

To find the number, let's represent it as a variable. Let's call the number "x".

According to the given information, "One more than 3 times a number" can be written as (3x + 1).

And "5 times the number decreased by 15" can be written as (5x - 15).

Now, we can set up an equation based on the given information:

3x + 1 = 5x - 15

To solve this equation, we need to isolate the variable x on one side. Let's begin solving for x:

3x - 5x = -15 - 1
-2x = -16

To isolate x, divide both sides of the equation by -2:

x = (-16) / (-2)
x = 8

So, the number we are looking for is 8.