Answer:
u = 3/4
Step-by-step explanation:
7/8-7/2u=-7/4
Make a common denominator of 8 for all fractions.
7/8 - 28/8 u = -14/8
Multiply both sides by 8.
7 - 28u = -14
-28u = -21
u = -21/(-28)
Answer: u = 4/3
3 ways because 12 divided by 4 is 3.
5
= 5
Add 5 on both sides
Make the denominators the same
Multiply 13 on both sides