start by distributing your numbers outside the front of your parentheses:
-6x - 36 - 10 = -10 - 8x
then combine like terms:
-6x - 46 = -10 - 8x ... add 10 to both sides (which technically could have cancelled out in the step prior, but regardless) -6x - 36 = -8x ... add 6x to both sides -36 = -2x ... divide both sides by -2 x = 18
