Question 322328
Let A and B be the two angles.
{{{A+B=90}}}
{{{B=2A-9}}}
Substitute,
{{{A+(2A-9)=90}}}
{{{3A-9=90}}}
{{{3A=99}}}
{{{A=33}}}degrees
{{{B=2(33)-9=66-9}}}
{{{B=57}}}degrees