Question

y over negative 4 + 5 = 15

Answer 1

y over-4

Answer 2

\[\large \large \frac{ y }{ -4+5 } = 15\] Does it look like that?

Answer 3

y
-+5=15
-4

Answer 4

\[\large \large \frac{ y }{ -4 } + 5 = 15\] Like that?

Answer 5

yeah

Answer 6

Alright. What do you think you do first to find y?

Answer 7

find y

Answer 8

Yes. So what do you think we do first?

Answer 9

+5 both side

Answer 10

We want to add 5 to both side?

Answer 11

i mean -4 both side

Answer 12

-4 to both side? Are you sure?

Answer 13

yeah

Answer 14

Hmm. Alright...
What does that give us?

Answer 15

i think. what yu think

Answer 16

Well. If you want to find any variable, you want to do inverese order of operation. Yes, we do subtract. But why 4? Tha doesn't lead us to anywhere.
If we subtract it by 5, then that would lead us to somewhere.

Answer 17

So if you subtract 5 by both side, then
5-5 = ?
15 - 5 =?

Answer 18

what i got to do with does number 10 in 0

Answer 19

What do you mean?

Answer 20

5-5=0
15-5=10 what else i need to do

Answer 21

Oh wait. So now you have: \[\large \large \frac{ y }{ -4 } = 10\] We want to find y, you know how?

Answer 22

so 5 in 15 gone

Answer 23

Yes. Since, 15 - 5 = 10.

Do you know what to do next?

Answer 24

15-5=10
-5 -5=10
10=10

Answer 25

is tha right

Answer 26

Nope. Here, another way of writing that fraction is y / -4. Correct?

Answer 27

yeah

Answer 28

So we want to do inverse operation to cancel out -4. So what's the opposite of division?

Answer 29

im confuse

Answer 30

What are you confused with?

Answer 31

how we suppose to cancel out -4 in both side

Answer 32

Like I said. You want to do inverse operation. So what's the opposite of division?

Answer 33

subtraction

Answer 34

o.O. Hmm. It's not.

Answer 35

Let say you have 10 - x = 4.
What would you do to find x?

Answer 36

*

Answer 37

Addition and subtraction are opposites of each other.
Multiplication and division are reciprocals of each other.

Both opposites and reciprocal operations are considered in the class of inverse operations.

Answer 38

There's no such thing as "opposite of division"

Answer 39

Correct. You should remember tat, doulo. You will need that later on. So you want to do multiplication, correct, doulo?

Answer 40

Thanks, Hero. I will keep that in mind.

Answer 41

6=x

Answer 42

Nope. Don't go ahead of me. We want to do multiplication, yes or no?

Answer 43

no we subtraction

Answer 44

Do you remembered what Hero said?

Answer 45

so im suppose to do division 10 in 4

Answer 46

No-no. y / -4 is another way of writing it. To get rid of -4, you want to do inverse operation. So what's the 'reciprocal' of division?

Answer 47

y count as 1 right

Answer 48

What do you mean? y can be anything.

Answer 49

so can we get rid of -4

Answer 50

Yes!!! :|
Like I said, we want to do inverse operation to get rid of -4.
So what's the 'reciprocal' of division?

Answer 51

y=4+5=15

Answer 52

Please answer my question. What's the 'reciprocal' of division?
You're only 2 steps away from answering your question!!!

Answer 53

multiplication right?

Answer 54

Hi @doulo I hope this helps you understand form out messages