13. (3/8)*q + 12 = 36
3q/8 = 24
3q = 192
q = 64
14. 3 - (3/4)n = 9
-3n/4 = 6
-3n = 24
n = -8
15. (7/9)v + 2 = 23
7v/9 = 21
7v = 189
v = 27
16. 7 + (1/8)l = -2
l/8 = -9
l = -72
17. (v/-3) + 8 = 22
v/-3 = 14
v = -42
18. 8x - 16 + 8x = 16
16x = 32
x = 2
19. 12a - 14a = 8
-2a = 8
a = -4
20. 7c - 8 - 2c = 17
5c = 25
c = 5
21. 6 = -y + 42 - 2y
-36 = -3y
y = 12
22. 16 + 8r - 4r + 4 = 24
20 + 4r = 24
4r = 4
r = 1
To inverse it the answer might be (2x)
The volume of a cylinder is the product between the base area and the height.
The base area is 
, where the radius is half the diameter:
Multiply this number by the height and you have the volume:
Answer:
10y^2-6
Step-by-step explanation:
2y^2=2(4y^2-3)
2x4y^2=8y^2
2x(-3)=(-6)
2y^2+8y^2-6
10y^2-6
