Find C in this problem

Question

Answer 1

To make the calculation easier, let's call (b + c) = g

Then the original equation is (a/g) - d = e/f. Add d to both sides:

(a/g) = (e/f) + d. Multiply both sides by g

a = g[(e/f) + d] Divide both sides by [(e/f) + d]

a/[(e/f) + d] = g Now replace g by the original b + c

b + c = a/[(e/f) + d] Subtract b from both sides.

c = a/[(e/f) + d] - b