Question

using the substitution method 9x-2y=3 and 3x-6y=y not really sure how to get this going please help

Answer 1

9x-2y=3 and 3x-6y=y

on the right is that really supposed to equal y?

Answer 2

the problems were on top of one another and it just tells me to solve it and see if it has a solution

Answer 3

ok, well then we can start with the equation on the right.

3x -6y = y

3x = 7y

x = (7/3)y .

(7/3)y into the first equation wherever you see x.

Answer 4

using the set builder notation

Answer 5

substitute x = (7/3)y into the first equation to get: 9(7/3y)-2y=3 then solve for y.

Answer 6

thank you so much for your help

Answer 7

No problem :D