Question

Which of the given pairs of expressions are equivalent?
A. 3z+2z and 5z
B. (8x-8x)-y and 0
C. 9.1+4.5a-2.5a and 11.1a
D. -7y(3)-3 and 0
E. y-6(3) and y-18
HELP

Answer 1

Which answers can you cancel out right off of the bat?

Answer 2

well solve each expression :)

Answer 3

um...

Answer 4

ok

Answer 5

what is 3z+2z?

Answer 6

5z?

Answer 7

yup so that one is equivalent

Answer 8

k

Answer 9

sorry (8x-8x)

Answer 10

0x

Answer 11

?

Answer 12

yup so when you multiply anything by 0 it equals 0 so its just 0-y

Answer 13

so it is not equivalent?

Answer 14

nope :)

Answer 15

k

Answer 16

what is 4.5a-2.5a and

Answer 17

give me a second please

Answer 18

2.0a?

Answer 19

also- is it 9.1a or just 9.1
and yes that is correct

Answer 20

equivalent?

Answer 21

we dont know that yet. is it 9.1 or 9.1a

Answer 22

9.1

Answer 23

It would be E. because 6*3=18
In conclusion y-18=y-18

Answer 24

lol goodjob you have to pick all of them. AND you shouldnt give immediate answers anyway

Answer 25

then should the equivalent have 9.1 in it?

Answer 26

i dont know

Answer 27

um i think so

Answer 28

it should because it has no (a) beside it

Answer 29

ok

Answer 30

-7y(3)-3 so fir this you know that you need to multiply then subtract the 3 so what ever the answer is it should at least have a (y) in it. :)

Answer 31

k thatnks

Answer 32

thanks*

Answer 33

y-6(3) then you just simplify that

Answer 34

i have to go..thanks for the help