Question

Simplify : x − 4y + 2z − 3x − 3y + 2z = ?

Answer 1

Combine like terms.
\[(x - 3x) + (-4y - 3y) + (2z + 2z) = ?\]

Answer 2

-2x2-7y2+4z

Answer 3

@doubledrive How in the world did you get the squared parts? There is no multiplying, just addition and subtraction.

Answer 4

lol, doesnt the x and y get squared since there are two??

Answer 5

Nope. You're adding the like terms.
x - 3x = -2x
-4y - 3y = -7y
2z + 2z = 4z
Wait, if you added the number of x and y, then how come you didn't do the same for z? It just doesn't make sense lol :)

Answer 6

so whats the answr?

Answer 7

oh, the z, well i forgot about that letter