Complementary angles add up to 90 so we want to add the two angles together and set it equal to 90° so 2x+46+3x-6=90 5x+40=90 5x=50 x=10 now that we know what X is we can figure out which angle is bigger and what your answer will be, 2(10)+46=66 3(10)-6=24 and to check our answer 66+24=90 so your answer is 66°