First, you need to distribute the right side of the equation : 8n - 2
Now the equation is : 20 - 7n = 8n - 2
Add 2 to both sides : 22 - 7n = 8n
Add 7n to both sides : 22 = 15n
Divide both sides by 15 : ( I had to round this one) 1.5 = n
Answer:
use formula length × width ×height
Step-by-step explanation:
plug in what they have given you
|4-9|
|-5|
5
|4|-9
4-9
-5
absolute value is the numbers distance from zero
