✔ 最佳答案
Simplify first:
= ([v - 5]/v) - ([7v - 25]/11v)
= (11[v - 5] - [7v - 25])/11v
= (11v - 55 - 7v + 25)/11v
= (4v - 30)/11v
Answer: (4v - 30)/11v OR (2[2v - 15])/11v
Then compute for v:
4v/11v - 30/11v = 0
4/11 = 30/11v
4 = 30/v
4v = 30
v = 15/2 or 7 1/2
Answer: v = 15/2 or 7 1/2
Proof (plug v with 15/2):
([15/2- 5]/[15/2]) - (7[15/2- 25]/[11{15/2}) = 0
([15/2 - 10/2]/[15/2]) - ([105/2 - 50/2]/[165/2]) = 0
([5/2][2/15]) - ([55/2][2/165]) = 0
1/3 - 1/3 = 0
0 = 0