Question 337616
1.{{{y = 2x -5}}}
2.{{{3x + y = 15}}}
Substitute eq. 1 into eq. 2,
{{{3x+(2x-5)=15}}}
{{{5x-5=15}}}
{{{5x=20}}}
{{{highlight(x=4)}}}
Then from eq. 1,
{{{y=2(4)-5}}}
{{{y=8-5}}}
{{{highlight(y=3)}}}