Question 1023135
Call the larger angle x.  The smaller must be 90-x, since they are complementary.  Then we can write
90 - x = (1/2)x - 15
Now add x and add 15 to both sides and get
105 = (3/2)x
Multiply by 2/3 and get
x = 70 degrees...the other must be 20 degrees...