We have the following expression given
[tex]x+8x+4z[/tex]And we need to simplify the expression so we can use comon factor for the first two terms and we have:
[tex]x(1+8)\text{ +4z = 9x +4z}[/tex]And that represent the most simplified form for this case since we can't operate x and z at the same time since there are different variables
