How do you solve #-2x-15=6x+9#?

1 Answer
Alan P.
Dec 30, 2016

#x=-3#

Explanation:

Given
#color(white)("XXX")-2x-15=6x+9#

Add #2x# to both sides:
#color(white)("XXX")-15=8x+9#

Subtract #9# from both sides
#color(white)("XXX")-24=8x#

Divide both sides by #8#
#color(white)("XXX")-3=xcolor(white)("XX")orcolor(white)("XX")x=-3#

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