Question

how do you solve this problem with either substitution or elimination?
y=x+2
y=2x

Answer 1

you can equal them out, you can eliminate one side or solve for x either way

Answer 2

wait what?

Answer 3

so 2x=x+2

or

y-2=x

so

y=2(y-2)

Answer 4

oh so i make it y=2x and y=2x?

Answer 5

hold on i'll write it out and attach

Answer 6

since they are both solved for y
you can also just set the equations equal to each other
2x = x+2

Answer 7

indeed you can solve this numerous of ways

Answer 8

yep :)
always try to use the simplest way

Answer 9

Using substitution

y=x+2

2x=x+2 ... Plug in y = 2x

2x-x=2

x=2

-------------

y = 2x

y = 2(2)

y = 4


So the solutions are x =2 and y = 4 giving us the ordered pair (2,4)

Answer 10

easiest would to just substitute the y=2x into the first equation

Answer 11

thanks you guys

Answer 12

right side is elimination method and your welcom

Answer 13

left is substitution for x instead of y just for kicks and what not... you'll have to do it someday if you haven't yet

Answer 14

k got it