You will need to know that the sum of "two complementary angles" is 90 therefore Let x = one angle then 90-x = second angle . Now, we construct our equation based on the sentence: "The sum of the measures of two complementary angles exceeds the difference of their measures by 86°." x + 90-x = x-(90-x)+86 90 = x-90+x+86 90 = 2x-90+86 90 = 2x-4 94 = 2x 47 degrees = x (first angle) . Second angle: 90-x = 90-47 = 43 degrees (second angle) hope it helps