Predict the result Solve the system y equals negative one half x minus one, and y equals two x minus eleven. Set up the model At a common point, both y expressions are equal. Equate them and solve for x, then substitute for y. Work the example The equation gives x equals four. Substitution in both original equations gives y equals negative three. Check the result Compare y equals two thirds x minus five with negative four x plus six y equals zero. Take eight seconds to think before the answer appears. [Eight-second silent pause to work; the answer remains hidden.] The slopes are equal but the intercepts differ, so the distinct parallel lines have no solution. Interpret the result A system solution must satisfy both original equations at the same point.