How do you solve #x+9+12x-15=-7#?

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Answer 1 · 2017-11-05T13:21:02

#x = -1/13#

Simplify

#x+12x + 9 - 15 = - 7 #

#13x - 6 = - 7 #

Rearrange

#13x - 6 + 7 = - 7 + 7#

#13x + 1 = 0 #

#13x = -1#

#x = -1/13#