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

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Answer 1 · 2018-05-14T22:50:12

#x=12#

Move the variable to one side, and the constant to the other, to get
#2x=24#
Then, divide both sides by 2 to get
#x=12#

Answer 2 · 2018-05-14T23:06:03

#x=12#

#2x - 9 = 15#

We wanna start by adding #9# on both sides

#2x - 9 + 9 = 15 + 9#

#2x = 24#

Then divide both sides by #2#

#(cancel2x)/cancel2 = 24/2#

#x = 12#