Question

Simplify the following expression:

2x − 2y + 5z − 2x − y + 3z

Answer 1

Combine Like Terms:
2x-2x-2y-y+5z+3z

Answer 2

Can you do it now?

Answer 3

So basically what you're saying is do such like put together (02x-2x)(-2y-y)(+5z+3z)?

Answer 4

Yes...

Answer 5

now what is 2x -2x

Answer 6

4x

Answer 7

umm. (2 x A Number)-(2 x The Same Number) = ?

Answer 8

Sorry, I'm relearning all of this as I go along, bad lifestyle and such, never went to class ,but taking math classes online to try and learn it all again. So, 2x-2x=1x correct

Answer 9

Or just x

Answer 10

no... let x=3
2(3) - 2(3) = ?

Answer 11

Erm, I've honestly no clue.
Because when I see the subraction symbol, I would think you're subtracting it, and if they're the same numbers, it'd be 0.

Answer 12

YESSSS !!! FINALLLYY ITS ZERRRO !

Answer 13

NOW ... What is -2y-y

Answer 14

I want to say -1y..

Answer 15

no.... if you owe me 2 dollars and you borrow another 1 dollar. Do you owe me 1 dollar in total now ?

Answer 16

Ahhh, -3

Answer 17

yess. so -2y-y = -3y. You understand?

Answer 18

So far actually yes

Answer 19

Now.. What is 5z+3z. Use the same analogy

Answer 20

8z

Answer 21

x − 3y + 8z?

Answer 22

WHAT HAPPENED TO ZERO !

Answer 23

0x− 3y + 8z ?

Answer 24

Yes, but 0 times any number is always zero thus 0x = 0 --> 0-3y+8z --> -3y+8z

Answer 25

Ohhhhhhhhhhhhhhhhhh....
Shoot, I get it now!

Answer 26

Well awesome, Thanks Coconut!

Answer 27

YOU WELCOME