Q73. - Algebra 1

Question

Evaluate each expression. (Lesson 1-2)

If $q=7$ then $7q–9=?$

Step-by-Step Solution

Answer

The value of the expression $7q-9$ is 40.

Step 1. Given.

The given expression is $7q-9$ and the given value is $q=7$.

Step 2. To find.

We have to find the expression $7q-9$ for $q=7$.

Step 3. Calculation.

We will plug $q=7$ in the expression to find the value of the given expression.

$$\begin{gathered} 7\left(7\right)-9=49-9 \\ =40 \end{gathered}$$

 

Hence, the value of the expression $7q-9$ is 40.