Ihave a problem -3x-7=-13. when isolating x i divide x by -3 then divide -13 by -3 correct?

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.

The first answer is correct