Answer:
42
Step-by-step explanation:
First Method
In this case we will substitute w=8 directly into the expression and solve:
[tex]7w - 14[/tex]
When x=8, we get:
[tex]7(8) - 14[/tex]
This gives us:
[tex]56 - 14 = 42[/tex]
Second Method:
This time we factor
[tex]7w - 14 = 7(w - 2)[/tex]
when w=8,
[tex]7(8 - 2) = 7 \times 6 = 42[/tex]