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Subtract 2 from both sides first.

What did you get?

11

Now divide both sides by -5

What did you get?

but that comes out to 2.2... and it needs to come out as a whole number..

That would be - 2.2 and it cannot come out as a whole number unless you copied the problem wrong.

okay.. the real question is.. 13=5m-2
i didnt think it would natter if you flopped it around..

it still comes out 2.2...

Add 2 to both sides.

\[13+2=5m-2+2\]

\[15=5m\]

Divide both sides by 5

and the answers 3?

\[\frac{15}{5}=\frac{5m}{5}\]

yep

okay tell me if i get this right to this next question..
-15=2t-11

so would you add 15 to both sides?

ok

so.. then would you do -2t then? so then you could get rid of it?

oh.. i see that now. sorry.. this is really frustrating..

Well I know it is but if you keep at it, all of a sudden the light will come on.

i got, t=-2

that was very good. Do you have another one?

yes i do,
7k-5=-19

Ok.
What do you think comes first?

and this is the part i mean i have troubles with.. like i never know if you would add -5bor -19..

What is the variable?

I don't mean the solution. I just want you to identify the variable. Is it x or y or ...what is it?

the variable is k

Yes. Good. Now look at it. Is it multiplied or divided by something?

Exactly. So at some point we're going to have to reverse that by dividing by 7.

But first, was anything added or subtracted to or from the k?

yeah because the problem is 7k-5

|dw:1328405964795:dw|

|dw:1328406078466:dw|

|dw:1328406166988:dw|

so for my question here
7k-5=-19
first i going to add -5 to -5 and -19 then rightt?

5 is subtracted because it says -5
so you should add 5 to both sides.

okay

Let me draw it for you in a different way

|dw:1328406347372:dw|

Now divide both sides by 7

so the answer all together then would be, k=-2

|dw:1328406418593:dw|

Yes. Good. Do you have another one?

yeah,
13=4x-11

What are you going to do first?

|dw:1328406584682:dw|

What first to get x alone?

|dw:1328406584851:dw|

this right??

Wow!1 You are very smart!!

i just did it??! yay! lol. but.. im still not feeling very confident with it quite yet..

Do you have another one?

okay, this one i have to draw out..

ok

|dw:1328406824918:dw|

|dw:1328406896963:dw|

wait.. so like how would u figure that out.. like first step..

|dw:1328407053667:dw|

so then 3 would go under the 10-7

yep

|dw:1328407194767:dw|

then you would divide.. but what would u do to divide in this case?

ive heard that

So dividing by 1/2 is the same as multiplying by 2.
It might be easier to just multiply by 2

|dw:1328407410240:dw|

oh, i kinda see this noww

Do you have another one?

6+n/5=-4

|dw:1328407657571:dw|

so first would you subtract 6 to 6 and the -4?

Subtract 6 from both sides.

-10

|dw:1328407833632:dw|

then what/

Well, we could divide by 1/5 or multiply by 5. Which do you choose?

multiply

good choice.

yeahh so then -10 *5?

yep

|dw:1328408025248:dw|

wonderful!! You keep at it sweetheart, and you'll be a star.

lol now.. how would u figure this one?
w+3w=20

Well now they threw us a curve ball, didn't they?

But this is easy. Just stay with me and answer by questions which may seem foolish.

kk

What is 1 dog +3 dogs?

4 what?

dogs

What is 1 dollar + 3 dollars

4 dollars

4d

And supposing we would all agree that d means 1d then what would d+3d be?

4d right?

right

so now in your problem you have w + 3w
What do you suppose that is?

4w

Exactly. So now your problem is 4w=20
How would you solve that?

divide by 4 so 20 divided by 4 would be 5

Good. perfect!!

so now theres this..
3(y+5)=21

So have you heard of the distributive property?

yeahh, we did it before.. but i forgot all about it.. but im sure ill remember once i see it again..

|dw:1328409800280:dw|

Does that look familiar?

idkk.. not really.. lol

|dw:1328409877024:dw|

|dw:1328409931974:dw|

oooh yeahh!

you have to "distribute' the 3 to the y and to the 5

so, 3y+15?

Great!!

6a+7-a+-18

Did you get the other one?

yes i got y=2

|dw:1328410272373:dw|

That's what I got also.

okayy cool

What about 6a-a+7-18

soo would that be 5a+7=18?

Oh. There's an equal sign. Yes. 6a-a=5a

okayy

so a=-5?