Question 103574
1.{{{2x + 3y = 1}}}
2.{{{5x + 3y = 16}}}
From (1), 
{{{2x+3y=1}}}
{{{3y=1-2x}}}
From (2)
{{{5x+3y=16}}}
{{{5x+(1-2x)=16}}}
{{{3x+1=16}}}
{{{3x=15}}}
{{{highlight(x=5)}}}
{{{3y=1-2x}}}
{{{3y=1-2(5)}}}
{{{3y=1-10}}}
{{{3y=-9}}}
{{{highlight(y=-3)}}}
Check your answer. 
1.{{{2x + 3y = 1}}}
2.{{{5x + 3y = 16}}}
{{{2x + 3y = 1}}}
{{{2(5)+3(-3)=1}}}
{{{10-9=-1}}}
{{{-1=-1}}}Good answer.
{{{5x + 3y = 16}}}
{{{5(5)+3(-3)=16}}}
{{{25-9=16}}}
{{{16=16}}}Good answer.
Neither, consistent with solution x=5, y=-3.