Question 305383
1.{{{2x + 4y = 28}}}
2.{{{x-2y = 10}}}
Multiply eq. 2 by 2 and add to eq.1,
{{{2x+4y+2x-4y=28+20}}}
{{{4x=48}}}
{{{highlight_green( x=12)}}}
Then use either equation to solve for y.
{{{2x + 4y = 28}}}
{{{2(12)+4y=28}}}
{{{24+4y=28}}}
{{{4y=4}}}
{{{highlight_green( y=1)}}}