Question

What is the answer to rx+qx-d=gc when solving for x?

Answer 1

$rx + qx - d = gc \\rx + qx = d + gc \\x(r) + x(q) = d + gc \\x(r + q) = d + gc \\\frac{x(r + q)}{r + q} = \frac{d + gc}{r + q} \\x = \frac{d + gc}{r + q}$