Question

Solve the linear system.
x + y = -3
y = 2x

(-1, -2)
no solution
coincident

Answer 1

dude help meeeeee plz member me

Answer 2

let
x+y=-3
y=2x
becomes substitution:
x+(2x)=-3
solve for "x"
(3x)=-3
(x)=-1
x=-1
thus y=2x
x=-1
by substitution
y=2(-1)
y=-2
hence,
the
answer is.....
(-1,-2)!
Happy Studying!!!!!

Answer 3

x + 2x = -3
solve for x and plug it into y=2\(\sf \color{red}{x}\)

Answer 4

Do you understand how I came to that answer?????

Answer 5

Yeah i am walking through the steps that you wrote. It makes perfect sense :)

Answer 6

@abbot came a bit too late sorry!!!!! See yah on the flip side!

Answer 7

Thanks guys :)