Question

Write the algebraic expression: a number n 4ecreased by 6 and then tripled.

Answer 1

We have to write the expression:

"A number n decreased by 6 and then tripled"

Step 1. A number n decreased by 6 is represented as follows:

$n-6$

Step 2. Tripling the previous expression we will get A number n decreased by 6 and then tripled:

$3(n-6)$

Answer: 3(n-6)