## anonymous one year ago Solve for B. A = 3(B + C) B = ((A-C) / (3)) B = ((3A-C) / (3)) B = ((A-3C) / (3))

1. anonymous

@Nnesha How do you make things a fraction on this website?

2. Nnesha

yep

3. Nnesha
4. anonymous

thx

5. anonymous

A

6. anonymous

the first choice? ""((A-C) / (3))""

7. Nnesha

` $$\large\rm\frac{2}{2}$$

8. Nnesha

FIRST STEp!!! distribute parentheses by outside term

9. anonymous

3B + 3C

10. Nnesha

yes right A = 3B +3C move 3C to the left side and then solve for b

11. anonymous

3C + A = 3b $\frac{ 3C }{ 3 } + \frac{ A }{ 3 } = \frac{ 3B }{ 3 }$

12. Nnesha

how would you cancel out 3C frm the right side ?

13. anonymous

|dw:1433940357819:dw|

14. Nnesha

nope how did you get 3C at left side ?

15. anonymous

|dw:1433940467896:dw|

16. anonymous

computer is laggy, getting hard to draw

17. Nnesha

yeS SUBTRACT 3c both sides

18. Nnesha

|dw:1433940641351:dw| now divide both sides by 3

19. anonymous

so the answer is: B= ((A-3C) / (3))

20. Nnesha

yep right and REMEMBER parentheses = jail and outside term = bodyguard or a gunman you CAN"T move anything from parentheses with out his permission (distributive property )

21. Nnesha

so it can't be A bec 3(B+C) you can't subtract C first step is distribute

22. anonymous

thats a interesting way to learn that, and a little unique... never heard of it that way before.

23. Nnesha

wait wait nope

24. Nnesha

okay i just noticed something first choice is it $\large\rm \frac{ a-c }{ 3 }$ or $\large\rm \frac{ a }{ 3}-C$? both are different

25. anonymous

the first one

26. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @YouDontKnowMeOo so the answer is: B= ((A-3C) / (3)) $$\color{blue}{\text{End of Quote}}$$ okay so yes this one is right