Question 327083
Add the two equations to eliminate y.
{{{4x + y+3x-y = 25+20}}}
{{{7x=45}}}
{{{x=highlight(45/7)}}}
Then use either equation to solve for x.
{{{4(45/7)+y=25}}}
{{{y=175/7-180/7}}}
{{{highlight(y=-5/7)}}}