2c - cd = m; solve for c
The answer is c 1 = m / (2 - d)2c - cd = m2 c - c d = mc (2 - d) = mDivide (2 - d) from both sides:c (2 - d) / (2 - d) = m / (2 - d)c 1 = m / (2 - d)c = m / (2 - d)