Question

evaluate the expression for b = 3, 2(7 + b) = \boxed{}.

Explanation:

Step1: Substitute \( b = 3 \) into the expression

Substitute \( b = 3 \) into \( 2(7 + b) \), we get \( 2(7 + 3) \).

Step2: Calculate the value inside the parentheses

First, calculate \( 7 + 3 = 10 \).

Step3: Multiply the result by 2

Then, multiply \( 2 \) by \( 10 \), so \( 2\times10 = 20 \).

Answer:

\( 20 \)