Question

Simplify the expression by combining like terms. Write the terms in alphabetical order of the variables.

X+20y-2z+19x-2y+19z

Answer 1

Answer: $20x+18y+17z$

Step-by-step explanation:

$x+20y-2z+19x-2y+19z\\(x+19x)+(20y-2y)+(-2z+19z)\\20x+18y+17z$