Answer:
z = -3
Step-by-step explanation:
42 = -7 ( z-3)
42 = -7z + 21
21 = -7z
z = -3
-0.5
Answer: -0.5
Step-by-step explanation:
An irrational number.
Example: Pi. Pi doesn’t have an ending as far as we know, so it cannot be written as a fraction.
Answer:
20x - 4
Step-by-step explanation:
4 less than 20 times some number
Let's break it up.
4 less than = -4
20 times some number = 20x (x is representing "some number")
So, let's put that together.
4 less than 20 times some number
20x - 4
