Question 1070659
1.{{{A+B+C=10}}}
.
.
2.{{{A-B+C=6}}}
.
.
{{{A-C=2+B}}}
3.{{{A-B-C=2}}}
Adding 1 and 2,
{{{A+B+C+A-B+C=10+6}}}
{{{2A+2C=16}}}
4.{{{A+C=8}}}
Adding 1 and 3,
{{{A+B+C+A-B-C=10+2}}}
{{{2A=12}}}
5.{{{A=6}}}
So then,
{{{6+C=8}}}
{{{C=2}}}
and
{{{6+B+2=10}}}
{{{B=2}}}