Question

What is the solution of the system? use substitution. y=x+6y=2x

a. (6,12)
b. (-12,-6)
c. (-6,-12)
d. (2,4)

IM VERY CONFUSED so please explain to me how to get to the answer.

Answer 1

You should have two equations, did you copy them wrong?

Answer 2

thats what it says.. here is the screen shot of it

Answer 3

I've tried but sorry I cant help =( Good luck though, but I appear to be going in circles

Answer 4

well thanks i guess the test question is wrong.

Answer 5

i called the school is supposed to be y=x+6
y=2x

can you help me now?

Answer 6

y = x + 6
y = 2x
And you've to work out what x and y are
Okey looks like similtaeneous equasions
If I write;

y - x = 6 (HINT: -2y + 2x = -12)
y - 2x = 0

Will you be abe to get that one yourself?

Answer 7

For the substitution method, you solve one equation for one variable, then you substitute that into the other equation.
if y=x+6 (first equation) then in the second equation
y=2x you substitute that
(x+6)=2x Then solve it
2x-x-6=0
x-6=0
x=6
Now, since y=x+6, y=12
Cool?