Question

whats the intersection points for 3y+6x=3 and x-y=-7?

Answer 1

if you add y to both sides of the second equation, you'll get x= ...

sub this into the first equation and solve for y

Answer 2

still confused

Answer 3

x-y = -7
adding y to both sides of the second equation
x-y +y = -7 +y
simplfying
x = -7 +y

Answer 4

just add these 2 equations.. and y will be eliminated... find x,