Show how you solve the following two equations:
x + 3 = 18

Question

Show how you solve the following two equations:
x + 3 = 18

anonymous · Answer

@iPwnBunnies

leilanilane · Answer

X  + 3 = 18
Is the same thing as 
18 - 3 = x
So x = 15

ipwnbunnies · Answer

Yes, since 3 is being added to x, you'll want to subtract it to the other side.

ipwnbunnies · Answer

This is in English, btw.

leilanilane · Answer

As simple as it gets lol

anonymous · Answer

I don't care if its in English buns:)

ipwnbunnies · Answer

Ok lol. Where's the second equation?

leilanilane · Answer

Does no one know that answer to my question :/ 
Lol

ipwnbunnies · Answer

Study groups? I don't think you can do that. 
Unless you make a question, then close it right when you make it.

anonymous · Answer

x + 3/4=2 1/4

leilanilane · Answer

No i read on the openstudy blog that they made a feature where u can add study groups and topics so unless they took that down...

ipwnbunnies · Answer

Oh, idk.

anonymous · Answer

???

ipwnbunnies · Answer

For this question, we want to rewrite these fractions as fractions with the same denominator. We also want to get rid of the mixed number on the right side.

ipwnbunnies · Answer

$$2 \frac{1}{4} = \frac{2*4+1}{4}$$

anonymous · Answer

I aint got no calcumaltor

anonymous · Answer

;(

ipwnbunnies · Answer

calculator* 
You don't know 2*4+1?
What's 2*4

anonymous · Answer

calcumalator*
8

ipwnbunnies · Answer

Lol && Now add 1. :)

anonymous · Answer

9!

anonymous · Answer

right =.=

ipwnbunnies · Answer

$$2 \frac{1}{4} = \frac{9}{4}$$

$$x + \frac{3}{4} = \frac{9}{4}$$

ipwnbunnies · Answer

We changed the right side of the equation. Now, when adding and subtracting fractions, they must have the same denominator, or bottom number.
Then, we do the math on the top numbers.

ipwnbunnies · Answer

Since both fractions have '4' in the bottom number, we can solve this easily. X is being added to 3/4. So, what do we do to get x by itself?

anonymous · Answer

I don't know!:(

anonymous · Answer

hey don't look at me I confused

anonymous · Answer

cornfusededed*

ipwnbunnies · Answer

Since x is being added to 3/4, you need to subtract. It's the opposite of addition.
We subtract 3/4 from both sides to get x by itself.

anonymous · Answer

oh. im less cornfusedededed.

ipwnbunnies · Answer

Good.
$$x = \frac{9}{4} - \frac{3}{4}$$
As I said, when adding or subtracting fractions. When they have similar bottom numbers, you can add and subtract the top numbers. 
We don't add and subtract the bottom numbers.
So, what would the right side be?

anonymous · Answer

oh crap I don't know im stupid and blonde. I think I can talk to my brother about it if you want to go to bed:)

ipwnbunnies · Answer

No, we're almost there. What's 9-3?
We do the math on the top numbers when the bottoms are the same.

anonymous · Answer

ok...

ipwnbunnies · Answer

$$x = \frac{9}{4} - \frac{3}{4}$$

$$x = \frac{6}{4} = \frac{3}{2}$$

anonymous · Answer

ok...

anonymous · Answer

thanx