Question

elimination
6x - 3y = 15
7x + 4y = 10

Answer 1

Start by multiplying top equation by 4, and second equation by 3. Then you can eliminate y :D

Answer 2

Thats how I would start :)

Answer 3

so what i do next

Answer 4

Did you get rid of y?

So what do you have left?

Answer 5

i left with x and = but i dont know if to add or subtact

Answer 6

|24x - 12y = 60
21x + 12y = 30 and i cancel the y already so dont worry bout the y so what i do with x and =

Answer 7

Well, add up the x's and numbers to get:

45x = 90
So x = 2

You have x now :D YAY

Now plug this into one of your two original equations:

Lets say 6x - 3y = 15 and solve for y

So you have:

-3y = -6x+15
3y=6x-15
y=2x-5

So plug x = 2 into (y=2x-5)

Answer 8

Wow....Zelda.... you could be a teacher :)

Answer 9

@kelliegirl33, thanks, but I'm a Law student (3rd year in Cornell) So not a teacher :P

Answer 10

how i solve for y

Answer 11

I told you. We found x, put it in for one of the two equations and solve for Y.

Answer 12

my answer is (2,1)

Answer 13

Close, y = -1 :p Anyhow

The solution should be (2,-1)

Answer 14

thank u vey much @Zelda

Answer 15

@lovechama, no prob kiddo.