Question

simplify the expression:
9 + 9d + 6 + 2

Explanation:

Step1: Combine constant terms

First, identify the constant terms (terms without the variable \( d \)): \( 9 \), \( 6 \), and \( 2 \). Add them together: \( 9 + 6 + 2 = 17 \).

Step2: Keep the variable term

The term with the variable \( d \) is \( 9d \), which remains unchanged as there are no other like terms (terms with \( d \)) to combine with it.

Step3: Form the simplified expression

Combine the result from Step1 (the sum of the constant terms) and the variable term from Step2. So the simplified expression is \( 9d + 17 \) (or \( 17 + 9d \), since addition is commutative).

Answer:

\( 9d + 17 \)