3a = 16.5
Divide both sides by 3
3a/3 = 16.5/3
a= 5.5
If you want to check the answer just replaced A by 5.5
3(5.5) = 16.5
16.5 = 16.5
The answer is good
I hope that's help , if not I am sorry
If you have questions just let me know
9.5m questions
12.2m answers