Open up the brackets
![5x - 5 + 3x = 7x + 7](https://tex.z-dn.net/?f=5x%20-%205%20%2B%203x%20%3D%207x%20%2B%207)
Collect like terms
![5x + 3x - 7x = 7 + 5](https://tex.z-dn.net/?f=5x%20%2B%203x%20-%207x%20%3D%207%20%2B%205)
Simplify
![8x -7x = 12](https://tex.z-dn.net/?f=8x%20-7x%20%3D%2012)
![x = 12](https://tex.z-dn.net/?f=x%20%3D%2012)
Therefore, your answer is 12.
Answer: - 42.95 feet
Explanation:
Let each ascent be x. Thus,
2 equal ascents = 2x
From the information given,
initial position = - 64.5 feet
Final position after 2 ascents = - 21.4 feet
This means that
- 64.5 + 2x = - 21.4
2x = - 21.4 + 64.5
2x = 43.1
x = 43.1/2
x = 21.55
Thus, Max's elevation after the first ascent is
- 64.5 + 21.55
= - 42.95 feet
3x-6≤9
3x≤15
x≤5
so the answer is x≤5
$15 + $32.50 + 8% = $51.30
15 + 32.50 = 47.50
8% × 47.50 = 3.80
47.50 + 3.80 = 51.30