Question

Which expressions are equivalent to: -5/x-3?

Answer 1

do you have options?

Answer 2

Yes.

Answer 3

what are the options?

Answer 4

It's not letting me draw... hold

Answer 5

yeah, it's broken

Answer 6

they are all equivalent =]

Answer 7

can you see why?

Answer 8

How...?

Answer 9

-a / b is the same as a / -b right?

Answer 10

like -8/2 = -4 and 8/-2 = -4

Answer 11

@Yovovel ?

Answer 12

yes, but is there a way to solve these problems? I could see the first one being the same, but. . .

Answer 13

you could plug in a value for x and see what you get
the ones with the same outcome would be equivalent

Answer 14

multiply -5 by -1 and (x-3) by -1

Answer 15

or do what helpme1.2 says..

Answer 16

I'll try

Answer 17

Oh! It works. I'll try the next question.

Answer 18

good luck

Answer 19

Is this right?

Answer 20

Wait, do I do the same if there's y and x?

Answer 21

you can do it, just substitute the same value for x's and the same value for y's
y(you can pick the same value for both x and y)
but I think its easir using algebra for more than 1 variable

Answer 22

Hmm.. -x-7/y

Answer 23

I think it's easier multiplying both numerator and denominator by some value to find and equivalent expression

Answer 24

hey, you can do the same process, just pick a value for x and other for y

Answer 25

I put an x on the ones that aren't similar and check mark for the right ones, which was only one.

Answer 26

they look all equivalent again

Answer 27

The first one isn't, I tried the same method

Answer 28

let's say x=3 and y=1
-(3+7)/1 = -10 and (-3-7)/1 = -10

Answer 29

they just factored out -1 from (-x-7)

Answer 30

the last option is not equivalent..

Answer 31

just to make it clear
-(a/b) = -a/b = a/-b

Answer 32

the negative sign means -1 times the fraction