How do you solve this equation
Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.
6c + 3 ==84c - 9
3 + 9 ==84c - 6c
12 == 78c
c == 12 / 78 == 2 / 13