## kumar2006 3 years ago What is the solution of the system of equations 2x − 5y = 11 and −2x + 3y = −9? (1) (−3,−1) (3) (3,−1) (2) (−1,3) (4) (3,1)

1. kumar2006

2. LagrangeSon678

were gonna do this together okay, real simple, first, we should add the first equation to the second equation okay: 2x − 5y = 11 −2x + 3y = −9 + --------------------- What do you get?

3. kumar2006

-4x8y-2

4. kumar2006

?

5. LagrangeSon678

really? just look at this we have to add it like we would normally, it dosent matter if there are x and y's (2x)+(-2x)=0

6. kumar2006

Fine I got the first step

7. LagrangeSon678

2x − 5y = 11 −2x + 3y = −9 + --------------------- -2y=2

8. LagrangeSon678

now can you find what y=?

9. kumar2006

y = -1,3

10. kumar2006

?

11. LagrangeSon678

what? how did you get y=-1,3, from -2y=2, you have to solve for y

12. kumar2006

I don't know how to solve for Y

13. LagrangeSon678

if you have -2y=2, you dont know how to get y by ?itself

14. kumar2006

Nope

15. LagrangeSon678

okay if i have -2y=2, then what should be done is divide both sidezs by -2, that gives us y=-1

16. LagrangeSon678

now, simply replace y=-1 into one of your orginal equation and get x

17. kumar2006

What will be my final answer?

18. kumar2006

?

19. LagrangeSon678

you have to solve this :2x − 5(-1) = 11

20. kumar2006

Thanks for everything but I rather get the answer

21. LagrangeSon678