Question

Simplify -4x + 2y + z - 3x + 2y - 2z

Answer 1

-7x + 4y - z

Explanation:

-4x + 2y + z - 3x + 2y - 2z

so combine like terms, -4x by -3x

2y by 2y

z by -2z

=(-4x + -3x) + (2y + 2y) + (z + -2z) equals

= -7x + 4y - z

Answer 2

-7x+4y-z

Explanation:

You will have to combine like terms.

-4x+2y+z-3x+2y-2z

-7x+2y+z+2y-2z

-7x+2y+z+2y-2z

-7x+4y+z-2z

-7x+4y+z-2z

-7x+4y-z

and the answer is:

-7x+4y-z

I hope this helps you. :)