Answer:
a = -1/2
Step-by-step explanation:
- 1/4a - 4 = 7/4a - 3
- 1/4a - 7/4a = - 3 + 4
- 8/4a = 1
- a = 1 / 8/4
- a = 1 * 4/8
- a = 4/8
- a = 1/2
a = - 1/2
