How do you solve #18 = -8x - x#?

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Answer 1 · 2018-05-07T17:42:29

#x = -2#

#18 = -8x - x#

add #x# terms together:

#18 = -9x#

divide both sides by #-9#

#18/-9 = (-9x)/-9#

#18/-9 = (cancel(-9)x)/cancel(-9)#

#x = 18/-9#

#x = -2#