Algebra
posted by kota .
Solve for c.
A=3(a=b1/3c)

There can be no = sign within parentheses. What did you really man to write?
Also: Is the c meant to be in the denominator with the last 3? 
Since + is shift=, I'll guess it's supposed to be
A = 3(a + b  1/3 c)
A/3 = a + b  1/3 c
(A/3 + a + b) = c/3
c = A + 3a + 3b