-x -4 = -20
-x = -16 ( -4 becomes + 4 on changing sides )
x = 16 ( cancel both the minus signs )
x = 16
the answer is that the x= 16
i got this answer like this
-x -4 = -20 subtract 4 by both sides
-x = 16 add it all up
-16 -4 = -20
use your calculator if you think im wrong but this is the method i use and it is 100% correct
