## gabbyalicorn one year ago What is the value of a?

1. gabbyalicorn

2. anonymous

Distribute 6 to a+2. 6(a+2) means 6a+ 6*2

3. gabbyalicorn

|dw:1442263180310:dw|

4. anonymous

Then distribute 3 to 10-3a. 3(10-3a)= 3*10-3*3a

5. anonymous

once you distribute 3 to 10-3a, combine like terms.

6. gabbyalicorn

6a + 12 3(10-3a) = 3 x 10 -3 x 3a what do you mean distribute? @mathway

7. anonymous

I already told you what distribute means.

8. gabbyalicorn

then distribute 3 to 10-3a?

9. anonymous

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10. anonymous

|dw:1442263827564:dw|

11. gabbyalicorn

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12. anonymous

Yes, distribute 3 to 10-3a.

13. anonymous

Wrong.

14. anonymous

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15. anonymous

This is what distribute means. -.-

16. gabbyalicorn

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17. gabbyalicorn

Sorry for the misunderstanding! ^///^

18. anonymous

Lol that's okay! :) Now combine the like terms. Combine means to add the like terms. |dw:1442264183038:dw|

19. gabbyalicorn

|dw:1442264244019:dw| @mathway

20. kohai

That's a 9

21. gabbyalicorn

Oh, lol. Thank you.

22. anonymous

obviously it's a 9.

23. anonymous

because 3*3 is 9, correct?

24. gabbyalicorn

yes.

25. gabbyalicorn

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26. anonymous

Yes. :)

27. anonymous

6a+9a=15

28. anonymous

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29. anonymous

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30. anonymous

divide both sides by 15. |dw:1442264815832:dw|

31. gabbyalicorn

Oh.

32. gabbyalicorn

Thank you.

33. anonymous

So what is \(a\)? :D

34. gabbyalicorn

15?

35. anonymous

No, you still have to divide 15 on both sides.

36. anonymous

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37. gabbyalicorn

15

38. anonymous

uhm what is \[15 \div 15=?\]

39. gabbyalicorn

1