Answer:
a = 9
Explanation:
3a - 27 = 0
3a = 27
a = 27/3
3*9 - 27 = 0
27 - 27 = 0
3a-27=0
Add 27 to each side
Divide by 3
3a/3 = 27/3
5.7m questions
7.4m answers