## anonymous one year ago Solving Equations with multiplying and dividing. 1. -y=-32 2. 7r=-56 3. t/-3 =12 4. 4= s/-14 5.b/47=-2 P.S. "The / means its a fraction."

1. anonymous

anyone can help me?

2. Keigh2015

I don't know this I am sorry. @alexistheking777 come take a look at this and @ianmack904 can you come look at this?

3. anonymous

Its fine i been looking for help all day.

4. Keigh2015

I am sorry I couldn't be of anymore help

5. anonymous

dont be srry, u ii

6. sammixboo

Let's do #5 *-* We have $$\tt \color{red}{\dfrac{b}{47}= -2}$$ To solve this you must: $$\tt \color{red}{Multiply~47~on~both~sides~of~the~equation.}$$ So, now we have $$\tt \color{red}{\dfrac{b}{47}\times47= -2\times47}$$ Do you know how to simplify this? Once you do, you will get your answer :)

7. anonymous

so do -2x47?

8. sammixboo

Right

9. sammixboo

And that's your answer for #5. Tell me what you got :)

10. anonymous

b=(-94)

11. sammixboo

Correcto *-* Now let's do #4: $$\tt \color{red}{4= \dfrac{s}{-14}}$$ Do you have an idea on how to solve this?

12. anonymous

i would do -14/4?

13. sammixboo

Not quite, you would $$\tt \color{red}{multiply}$$, since you are originally $$\tt \color{red}{dividing}$$.

14. sammixboo

So, $$\tt \color{red}{-14\times4}$$

15. anonymous

-56

16. anonymous

s=(-56)

17. sammixboo

Correct again ^-^ #4 is -56. Let's do #3: $$\tt \color{red}{\dfrac{t}{-3}=12}$$ Do you know what to do on this one?

18. anonymous

12x-3?

19. sammixboo

Right, which is?

20. anonymous

t=-36

21. sammixboo

Right *-*, so #3 is -36 Now for #2, we do the opposite since we are originally multiplying. $$\tt \color{red}{7r=-56}$$ We have to $$\tt \color{red}{divide~7~on~both~sides}$$. What do you think the answer is?

22. anonymous

SO....-56/7

23. sammixboo

Yeppers :)

24. anonymous

UM...I GOT SUM REALLY LONG NUMBER

25. sammixboo

You shouldn't. Make sure you type -56/7 and not 7/-56

26. anonymous

i got -8.142857143

27. sammixboo

Sure you typed everything correct?

28. anonymous

yep stll got the long number

29. sammixboo

You typed -57/7, not -56/7

30. anonymous

X___x

31. anonymous

I GOT -8

32. sammixboo

^-^ It's ok. It happens a lot, and that is right, so #2 is -8

33. anonymous

r=-8

34. anonymous

i think ik #1

35. sammixboo

What do you think it is?

36. anonymous

y=-32

37. anonymous

cause u remeber the teachers saying if the letter by itself it counts as a 1 in front of it

38. sammixboo

Close, but not quite. Now for #1, we have $$\tt \color{red}{-y = -32}$$, since they are both negative, your answer should be positive

39. anonymous

OH OK

40. anonymous

y=32

41. sammixboo

If y = -32, then we would have - - 32 = -32, which isn't right :P

42. sammixboo

Right *-*

43. sammixboo

Good job :)

44. anonymous

YAY...i feel smart

45. anonymous

i think i can do the other 16 by myself

46. sammixboo

Okie dokie. Once you finish you can post it here and I can check it if you want.

47. anonymous

ok