Answer:
After expanding the polynomial
we get 
Step-by-step explanation:
We need to expand the polynomial 
Multiply the terms:

So, after expanding the polynomial
we get 
Answer:
C $973.39
Step-by-step explanation:
the answer is C on e2020
Hope this helps!
There are 3 images with full explanation
Answer:
x=21.
Step-by-step explanation:
First you distribute 3 to the parenthesis. You should get 3x-21=42 at this point. Then you add 21 to 42 to get 63. Here you should be at 3x=63. Divide 63 by 3 to get x=3
Answer:
Equation: 7x - 23 = 25 + x
Solution: x = 8
Step-by-step explanation:
7x - 23 = 25 + x
1. Subtract 25 from both sides:
7x - 23 - 25 = 25 - 25 + x
7x - 48 = x
2. Subtract 7x from both sides to get x on one side:
7x - 7x - 48 = x - 7x
- 48 = -6x
3. Divide both sides by -6 to get x by itself:
8 = x
8 is the solution