## Nimi404 2 years ago What algebraic equation represents " three times the difference of a number,x, and nine equals fifteen"?

1. UsukiDoll

if it's just nine equals fifteen 9=15

2. hartnn

difference of a number,x, and nine--->x-9 three times the difference of a number,x, and nine---->3(x-9) equals fifteen --->=15

3. UsukiDoll

three times the difference of a number x ummm...wow it's been years since I tackled this

4. UsukiDoll

OH! Now I see it

5. UsukiDoll

we need to read this carefully since putting it in order isn't correct. difference of a number x is not -x it's x-

6. hartnn

so, what expression u got ?

7. Nimi404

Thanks a lot

8. UsukiDoll

3(x-9)=15

9. hartnn

write the expression, so that we can verify

10. UsukiDoll

distribute 3x-27=15

11. UsukiDoll

oh crud too much info sorry

12. Nimi404

3(x-9)=15

13. hartnn

thats correct.

14. Nimi404

Yeah

15. UsukiDoll

x =14 XD

16. UsukiDoll

|dw:1356777407547:dw|

17. hartnn

yes, x=14, but it wasn't asked :P

18. UsukiDoll

|dw:1356777459506:dw|

19. UsukiDoll

|dw:1356777524314:dw|

20. Nimi404

Hey Uski solve this betsy has a certain number of rings,r. The number oF rings vivan has is 4 times as great. Which expression can be used to determine the number of rings vivan has

21. UsukiDoll

oh lord this type of stuff was years ago

22. UsukiDoll

multiple choice?S

23. hartnn

4 times as great---->4r

24. UsukiDoll

I knew that.

25. UsukiDoll

I'm sick really with a cold

26. UsukiDoll

can't do math with a cold

27. hartnn

its very cold here too !

28. UsukiDoll

no seriously I'm sick with a fever.

29. hartnn

rest for some time then...

30. UsukiDoll

|dw:1356777717925:dw|

31. hartnn

@Nimi404 , new Q, new post please...