Question 1023238
{{{B+2A=25}}}
{{{2B-A=10}}}
Multiply the second equation by 2 and add to the first,
{{{B+2A+4B-2A=25+20}}}
{{{5B=45}}}
{{{B=9}}}
Then,
{{{2(9)-A=10}}}
{{{18-A=10}}}
{{{A=8}}}