To answer this question you would start by finding the angle measure of either XYW or ZYV. To do this you would set up the equation 3x+23=7x-37. Start by adding 37 to both sides, getting a new equation of 3x+60=7x. The subtract 3x from both sides, getting 60=4x. Finally, divide both sides by 4, getting x=15. You would then plug 15 in for x in either (3x+23) or (7x-37). I'm using (3x+23). 3(15)+23, multiply 3 by 15, getting 45+23, then add 45 and 23, getting 68 as your angle measure. Finally, subtract 68 from 180 to get your answer, 112.