Question 804528
{{{(5x+90)+(3x-6)=180}}}
{{{8x+84=180}}}
{{{8x=96}}}
{{{x=12}}}
plug into both equations
{{{5(12)+90}}}
{{{60+90}}}
{{{150}}}
{{{3(12)-6}}}
{{{36-6}}}
{{{30}}}
The angles are 150 and 30.