## anonymous one year ago What is the equivalent form of the equation 3x-3y=15 ?

1. triciaal

divide each term by the common factor

2. anonymous

Every answer is like 5=x-5 and I don't understand how you would simplify 15 to be 5...

3. triciaal

|dw:1442247959814:dw|

4. anonymous

3 is common, so you cancel both of the 3's out or what? What did you do to the 15?

5. triciaal

|dw:1442248127829:dw|

6. triciaal

|dw:1442248178343:dw|

7. anonymous

Sorry I'm so confused... this is the question on the test.

8. triciaal

pretend it is not a test so you can read properly

9. triciaal

do you understand we divided by 3 since it was a common factor? now we want to make it in the form y = so we leave y on one side and take everything else to the other side of the equation

10. triciaal

whatever you do to one side also do the same to the other side to maintain the balance

11. anonymous

Yes, I understand that I'm supposed to do that. I don't understand what you did to both of the 3's though.

12. triciaal

|dw:1442248557212:dw|

13. triciaal

x - 5 = y

14. triciaal

|dw:1442248717763:dw|

15. anonymous

|dw:1442248816577:dw|

16. triciaal

|dw:1442248883097:dw|

17. triciaal

|dw:1442248937679:dw|

18. anonymous

Okay, that makes much more sense when you put it that way!

19. anonymous

|dw:1442249095395:dw| Wouldn't it be this?

20. triciaal

|dw:1442249477220:dw|