Question #0b5a5

1 Answer
Sep 19, 2017

#x=-1#

Explanation:

Well, although using the distributive property would work, you could skip that step entirely and save some time!

#-18-6k=6(1+3k)#

First, since the #6# on the right side is multiplying, and to get rid of things, you need to do the opposite, you need to divide both sides by #6#:

#-3-k=1+3k#

Now, just isolate the #k#'s:

#-4=4k#

And since #4# is multiplying with #k# on the right side, and you're trying to solve for #k#, you need to do the opposite, witch is dividing #4#:

#-1=k#

To check a problem like this (and many others) plug the answer you get into the original equation, and when worked out, both sides should equal the same thing.