Question

find the value of the expression 4a + 7 when a equals 1/2

Answer 1

Answer:

9

Explanation:

Given the expression:

$4a+7$

When the value of a =1/2

$\begin{gathered} 4a+7=4(\frac{1}{2})+7 \\ =2+7 \\ =9 \end{gathered}$

The value of the expression when a=1/2 is 9.