Question 944340
{{{A+B=180}}}
{{{A-B=35}}}
Add the equations together,
{{{A+B+A-B=180+35}}}
{{{2A=215}}}
{{{A=215/2}}}
Then,
{{{215/2+B=360/2}}}
{{{B=(360-215)/2}}}
{{{B=145/2}}}