Solve the equation for the letters a and b. 1 - ax = b, a does not equal 0. Solve for a: 1 - ax = b -ax = b - 1 -a = (b - 1)/(x) a = [(b - 1)/x] ÷ -1 a = -[(b - 1)/x] As you can see, b has been given to us. 1 - ax = b. Yes?