Solve for q

6q - 18 = qr + s

The answer to this questions is q = s+18 over r-6

Get all the q terms to one side of the equation and isolate them.

Add 18 to both sides and subtract qr from both sides.

6q-qr=s+18

Factor out a q on the left side.

q (6-r) = s+18

Divide by (6-r) on both sides to solve for q.

q = (s+18) / (6-r)