## Hesher 3 years ago 3x+2y= 12 solve for y?

1. Brittni0605

Isolate y. What do you have to do first?

2. HELP!!!!

2y=-3x+12 y=-3/2+6

3. HELP!!!!

4. Hesher

So I have to subtract 3x from the right side of the equation right?

5. Brittni0605

@HELP!!!! I wish Hersher could of done it, instead of it being done for him/her.

6. Hesher

Sorry, I just signed up for this site 5 minutes ago

7. Brittni0605

Yes @Hesher

8. Hesher

one second

9. Hesher

so after I move 3x (which is now -3x) to the side of the equation with 12 on it, do I divide by 3x on that side?

10. Hesher

*Do I divide -3x and 12 by 3?

11. Brittni0605

No.

12. HELP!!!!

so first you isolate the y to one side of the equation. But for this problem you would move the x variable to the right side to make the equation easier.

13. Brittni0605

|dw:1352677832823:dw|

14. Hesher

oohhh

15. HELP!!!!

............

16. Brittni0605

Now, what should you do? @Hesher

17. Hesher

|dw:1352677981230:dw|

18. Hesher

sorry, Im bad at drawing with a mouse

19. Brittni0605

No, do not divide by 3x. You've subtracted it from the left side to the right. You are done with the 3x. Now you want to isolate 'y'. But you have '2y'..so what should you do?

20. Hesher

so then 2y = 4, So I divide 2 and 4 both by 2? y = 2 ?

21. Hesher

|dw:1352678175920:dw|

22. Brittni0605

Where did you get a 4 from??

23. Hesher

from dividing 12 by 3

24. Brittni0605

|dw:1352678232917:dw|

25. Brittni0605

No, you do not divide 12 by 3

26. Hesher

I divide everything by two?

27. Hesher

No, that wouldn't work

28. Brittni0605

Yes.

29. Brittni0605

|dw:1352678367244:dw|

30. Hesher

Thank you

31. Brittni0605

Np.