SOLUTION: Solve using the addition principle. -18 = m - 30

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Question 568158: Solve using the addition principle.
-18 = m - 30
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-18 = m - 30


-18 + 30 = m - 30 + 30


12 = m


m = 12


So the solution is m = 12