Answer:
3 millimeters by 10 millimeters
Step-by-step explanation:
ffffff cccc fff
a = 3
1) Simplify 5a - 9 + a to 6a - 9.
2) Add 9 to both sides.
3) Simplify 9 + 9 to 18.
4) Divide both sides by 6.
5) Simplify 18/6 to 3.
Therefor, the answer is, a = 3.
F=-9
Hope This Helps!