Question

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

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

Answer 1

y=x+6

2x = x+6... plug in y = 2x

now solve for x

Answer 2

how do you solve for x?

Answer 3

you need to isolate x

if you're unfamiliar with the techniques to solve for x, see this page

http://www.purplemath.com/modules/solvelin.htm

Answer 4

here is another page that might help

http://www.regentsprep.org/Regents/math/ALGEBRA/AE2/LSolvEq.htm

Answer 5

2x = x + 6
-1 -1

-1x = 6
-1 -1

x=-6

this is what i got^^^^

Answer 6

close, but it should be

2x = x + 6

2x - x = x+6 - x

1x = 0+6

1x = 6

x = 6

Answer 7

ok so 6 is the x intercept how do get the y?

Answer 8

y = 2x

plug in x = 6 to find y

Answer 9

y=2x
y=2(6)
y=12

Answer 10

yep

Answer 11

you got it

Answer 12

thank you so much

Answer 13

yw