LonelyandForgotten 2 years ago i need help with this question..

1. LonelyandForgotten

2. lovemenplayhard

$25-\frac{ 3 }{ 7 }f=19+\frac{ 4 }{ 7 }f$ bring like terms 2gether

3. lovemenplayhard

add 3/7 f on both sides

4. LonelyandForgotten

how do you add a fraction?

5. lovemenplayhard

$25-\frac{ 3 }{ 7 }f+\frac{ 3 }{ 7 }f=19+\frac{ 4 }{ 7 }f+\frac{ 3 }{ 7 }f$

6. lovemenplayhard

take LCM

7. LonelyandForgotten

huh :(

8. lovemenplayhard

$25-19=\frac{ 4 }{ 7 }f+\frac{ 3 }{ 7 }f=\frac{ 4+3 }{ 7 }f=\frac{ 7 }{ 7 }f =f$ f=6, does dat help?

9. lovemenplayhard

u got common denominator in fraction just add the numerator

10. LonelyandForgotten

i guess...

11. lovemenplayhard

kewl ;)

12. LonelyandForgotten

thanks :) i'll try to firgure it out

13. lovemenplayhard

ur welcme ;)

14. LonelyandForgotten

figure* lol

15. LonelyandForgotten

:)

16. lovemenplayhard

;)

17. LonelyandForgotten

@lovemenplayhard help please :( 4c + 7 + 6c =23

18. LonelyandForgotten

do i subtract here?

19. lovemenplayhard

add like terms 4c+6c+7=23 10c+7=23 subtract 7 both the sides 10c+7-7=23-7 10c=16

20. lovemenplayhard

later divide both da sides by 10$\frac{ 10 c}{ 10 }=\frac{ 16 }{ 10 }=\frac{ 8 }{ 5 }=c$

21. lovemenplayhard

does dat hlp?

22. LonelyandForgotten

so last one i divide 8/5?

23. LonelyandForgotten

it's 1.6 ?

24. lovemenplayhard

finaly ur gonna get c=1.6

25. LonelyandForgotten

but its not one of the answers, how could it be 1.6?

26. lovemenplayhard

16/10=1.6 or 8/5

27. LonelyandForgotten

hmm okay then i guess its not one of them :/

28. lovemenplayhard

wat r ur options?

29. LonelyandForgotten

A. Not given B. c =18 B. c = -8 C. c = -18

30. lovemenplayhard

A

31. LonelyandForgotten

okay thats what i thought too :P

32. lovemenplayhard

kewl ;)