Question 312559
{{{A+B=180}}}
{{{A=B-60}}}
Substitute into the first equation,
{{{(B-60)+B=180}}}
{{{2B-60=180}}}
{{{2B=240}}}
{{{highlight(B=120)}}}
Then from the first equation,
{{{A+120=180}}}
{{{highlight(A=60)}}}
The larger angle measure 120 degrees.