Question 26120
the sum of two angles is 90.
first denote one angle as x
then the other one, will be: measures 15 degree more than twice the measure of it's complement--> 15 + 2x

so the final equation is the first angle + the second angle=90 :
x + 15+2x = 90

3x+15=90

3x=75

x=25 which is the first angle

and the second one is 2*25+15=65     

check solution: 65+25=90