Answer:
x = (a-4)/c
Explanation:
1) Multiply 6 for a and -cx
6a - 6cx = 24
2) Add -6a at the two members
-6cx + 6a -6a = 24-6a
-6cx = 24 -6a
3) Multiply the two members by -1
6cx = 6a - 24
4) divide the two members by 6c (assuming that its values is not 0)
x = (6a-24)/6c
5) simplify the second member
x = [6(a-4)]/6c
x = (a-4)/c