ill gibe a brainliest
someone helpp

Answer:
a=11
Step-by-step explanation:
3a-24=9
We move all terms to the left:
3a-24-(9)=0
We add all the numbers together, and all the variables
3a-33=0
We move all terms containing a to the left, all other terms to the right
3a=33
a=33/3
a=11