[ashleypruitt]

Elimination with Multiplicationhelp pleaseeeee! :confused:


1. -3x+ 2y = 10
-2x - y = -1



2. 2x + 5y = 13
4x - 3y = -13

3. 5x +3y =4
-4x+ 5y = -18

4. 1/3x - y = -1
1/5x - 2/5y = -1

5. 3x-5y =8
4x-7y = 10

6. x- 0.5y = 1
0.4x + y = -2

7. x+ 8y = 3
4x - 2y +7

8. 4x - y = 4
x+ 2y = 3

9. 3y - 8x = 9
y - x =2

10. X + 4y = 30
2x - y = -6

11. 3x - 2y = 0
4x + 4y = 5

12. 9x - 3y = -9
-8x + 2y = 4

13. 2x - 7y= 9
-3x + 4y = 6

14. 2x- 6y = -16
5x+ 7y = -18

15. 6x - 3y = -9
-8x + 2y = 4

[morgaine300]

Did you expect someone to just do all these for you?

Here at AMHD we have homework guidelines:

https://www.askmehelpdesk.com/arts-l...-b-u-font.html

[galactus]

I will do the first one using elimination. Then you try some and see how it goes. Okey-doke?

#1:





The thing to do is look at it and see what you can multiply one line by so that when you add them a variable is elimination. That's why it's called the elimination method.

Multiply the bottom row by 2. That way you'll have -2y in the second row and 2y in the first. So, when you add them you get 0.





Add them and get:





Now, you can sub that in to get your y.