Answer:y=131°x=53°Step-by-step explanation:∠ ABD and ∠ BDC are supplementary. The sum of the supplementary angles =180 ° thus y-4+x=180...........ix and 37° are complementary, that is, they add up to 90°Thus, x=90-37=53°Using this value in equation 1 we obtain: y-4°+53° =180°y= 180°-53°+4°y=131°