five times a number decreased by twice the same number

5n - 2n

To express "five times a number decreased by twice the same number" as a mathematical expression, follow these steps:

Step 1: Let's represent the number with a variable, such as 'x'.

Step 2: Express "five times a number" as '5x'.

Step 3: Express "twice the same number" as '2x'.

Step 4: To find the result of "five times a number decreased by twice the same number," subtract '2x' from '5x'.

Step 5: Combine the terms to get the final expression:

5x - 2x

Simplifying this expression yields:

3x

Therefore, the mathematical expression for "five times a number decreased by twice the same number" is simply '3x'.