Question 716756
Find 2 angles whose sum is a right angle such that one of the angles is 20 degrees greater than one-third the other angle. 
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let x= first angle
x/3+20=second angle
..
x+x/3+20=90
x+x/3=70
3x+x=210
4x=210
x=52.5
x/3+20=
first angle=52.5º
second angle=37.5º