How do you solve #18=9(x+5)#?

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Answer 1 · 2018-03-15T12:14:06

There are several ways, but I'd probably do it as below.

The solution is #x=-3#.

#18=9(x+5)#

Expand brackets:

#18=9x+45#

Subtract #45# from both sides:

#9x=18-45=-27#

Divide both sides by #9#:

#x=-3#