Question 838664
1.{{{y=2x-8}}}
2.{{{x+2y=4}}}
Substitute eq. 1 into eq. 2,
{{{x+2(2x-8)=4}}}
{{{x+4x-16=4}}}
{{{5x=20}}}
{{{x=4}}}
Then from eq. 1,
{{{y=2(4)-8=8-8=0}}}