A triangle with angles labeled x degrees, y degrees, and y minus 18 degrees. The diagram shows the equation 3 x minus 5 y equals negative 22. MATHEMATICAL CONNECTIONS a. Write an equation that represents the sum of the angle measures of the triangle. The equation is $=180$ . Question 2 b. Use your equation and the equation shown to find the values of $x$ and $y$ . $x=$ $y=$