Question 1068132
{{{A+B=69}}}
{{{A=2B}}}
Substituting,
{{{2B+B=69}}}
{{{3B=69}}}
{{{B=23}}}{{{in}}}
So then,
{{{A=2(23)}}}
{{{A=46}}}{{{in}}}

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{{{A=262+B}}}
{{{2B-A=218}}}
Substituting,
{{{2B-(262+B)=218}}}
{{{2B-262-B=218}}}
{{{B-262=218}}}
Now solve for B and then go back and solve for A.