The x and the -5x are like terms since the both have "x" in them. So are the 4 and the -2 since they are both integers. So do [latex]x-5x=-4x[/latex] and then [latex]4-2=2[/latex]. Put those together and you get -4x+2.
x + 4 - 5x - 2 Combine like terms. x - 5x = -4x 4-2 = 2 -4x + 2 Answer: -4x + 2