## justinee 3 years ago Hii(: Can someone explain to me how to rearrange equations?

1. justinee

example: |dw:1321914148983:dw|

m=E_p/gh

3. karatechopper

teach her

4. justinee

and like how did you do it?

E_p=mgh Divide both sides by gh to isolate m E_p/gh=m

6. justinee

for g Divide both sides by mh

8. alfie

If you have something like.... 2 = 2. You are free to add the same number to both sides.. like this: 2+1 = 2+1 => 3 = 3... still true! You are free to subract the same number to both sides... 2-1 = 2-1 ... still true! And so on with multiplication and division... So if you have something like... ab = c And you are asked to solve for "a", you have to get all the other terms to the second member. So what do you do is to divide by "b" to get rid of that b over there.. so you get.. a = c/b Hope you now can do your exercise! :)

9. justinee

@Aditi-Meow: what does the _ in E_p stand for?

|dw:1321914517975:dw|

11. justinee

do you need that line in it? lol

Lol i thought it was a subscript \[E_{p}\]

13. karatechopper

hah

just wrote your question as such =D

15. karatechopper

lol

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