How Simplify 25w-8x plus 4z-6w plus 13x-z?

Answer 1

25w - 8x + 4z - 6w + 13x - z

Make three piles. Put all the 'w's in the first pile, all the 'x's in the middle pile,

and all the 'z's in the third pile.

All the 'w's:

25w - 6w = 19w

All the 'x's:

-8x + 13x = 5x

All the 'z's:

4z - z = 3z

Now gather up all the piles and put them back together in one polynomial:

19w + 5x + 3z.

Technically, this process is called "combining like terms".