Question

Simplify the following expression.
3x − 4y + 6z − x − 3y + 2z

I got 3x-1y+8z.
I subtracted 4y and 3y, thats where i got my 1y.
Then i added 6z and 2z, which i got 8z. I looked at the answer choices and i couldn't find that as a choice.
Here are the choices:
a: 4x − y + 8z

b: 2x − y + 8z

c: 2x − 7y + 8z

d: 2x − 7y + 12z

Answer 1

Collect the like terms for the first question

Answer 2

3x − 4y + 6z − x − 3y + 2z
3x-x =
-4y-3y=
6z+2Z=

Answer 3

what i did in here is that i combined the like terms. X with x, y with y, and z with z

Answer 4

3x-x =?
-4y-3y=?
6z+2z=?

Answer 5

I never noticed the x. I saw the 3x but not the single x. I think that threw me off. @Zale101

Answer 6

the single x basically stands for 1

Answer 7

4x-y+8z ? @Zale101

Answer 8

no

Answer 9

how did u solve that?

Answer 10

3x-x is 2x
-4y-3y is -7y
6z+2z is 8z

Answer 11

2x-7y+8z is the right answer, not 4x-y+8z :)

Answer 12

@Puurfect_kitty , u there?

Answer 13

yes, sorry, i skipped that question to the ones i knew. and i did it like i added 3x and x. (4x). I subtracted 4y and -3y (-1y). then added 6z and 2z (8z) @Zale101

Answer 14

the mistake u did is that 4y supposed to be -4y
3x-x, subtract

3x - 4y + 6z - x -3y + 2z
2x - 7y + 8z

Answer 15

Ok, thank you for the help(: @Zale101

Answer 16

i'm glad it did :D