Question 162092
#5.{2x-2y=4 and y-x=6}
#6.{3x+y=5 and x-y=7}
#7.{-5x+y=-9 and x+3y=21}
#8.{y=x and y-5x=0}
#9. {x=10 and x=y-10}
Put them in slope-intercept form;
#5) y=x-2; y=x+6;
{{{graph (300,300, -5,5,-5,5, x-2, x+6)}}}
#6) y=-3x+5, y=x-7;
{{{graph (400,400, -5,5,-8,8, -3x+5, x-7)}}} 
#7) y=5x-9, (1/3)x+7;
{{{graph (300,300, -5,5,-10,10, 5x-9, (1/3)x+7)}}} 
#8)y=x, y=5x;
{{{graph (300,300, -5,5,-5,5, x, 5x)}}} 
#9)x=10, y=x+10;
{{{graph (500,500, -5,5,-11,11, x=10, x+10)}}}
:)