Answer:
x - 6.
Step-by-step explanation:
3(x-6) = 3x -18
3x -18 + 4x + 12 -6x = x - 6
asasassasas
89
85+92+95+81+92=445 and since there are 5 numbers you're going to divide by 5 so 445/5 which is 89