You would set your equation up as basically f(x)-g(x), so:
(3x-4)-(x+2)
combine your like terms and you should have your answer:
2x-6
Walter will have walked 1.05 miles.
To find the missing piece on the right side, we need to set up and solve the following proportion.
0.2 / 0.5 = 0.3 / x
x = 0.75
Now, that we know the 2 pieces on the right side, just add them together.
0.3 + 0.75 = 1.05 miles
I figured out the first question, the second one in lost on.

Factor both of the equations, numerator and denominator

Cancel the like factors *excuse the zero im just showing you*

Combine frunctions

x-9=0
x+7=0
Restrictions are 9 and -7
Answer:
The Communicative Property of Multiplication
Step-by-step explanation: