Answer:
f=1.-2
Step-by-step explanation:
f = 1
- f + 2 + 4f = 8 - 3f
- f + 4f + 3f = 8 - 2
6f = 6
f = 6/6
check :
- 1 + 2 + (4 * 1) = 8 - (3 * 1)
- 1 + 2 + 4 = 8 - 3
5 = 5
so it's right
