To figure out what x is we must first see the surrounding numbers. x3 means x multiplied by 3 equals 216. To figure out our answer we must do the OPPOSITE of multiplication... can you guess it? We must DIVIDE. So here is our new equation....
216/3 = x
Divide 216 by 3 and there is your answer for x.
REMEMBER : What you do to one side you must do to the other, to get rid of the 3x you must divide by three on that side as well so you just have "x"
