Explanation: These are two equations in two unknowns, conveniently with the same x-term in each. Solve the second equation for the x-term, set it equal to the first equation. This is easier on the eyes if you multiply everything through by 10 first: 33-5y = 6y-22, so 55 = 11y and 5 = y. Don’t pick answer choice D; the question asks about x. Plug the y back into either equation to find x = 4.