SOLUTION: Mary Wong has $42. She earned $7 per hour. How many hours will she have to work to have a total of $126

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Question 503912: Mary Wong has $42. She earned $7 per hour. How many hours will she have to work to have a total of $126
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
She needs to make +126+-+42+=+84+ dollars more
Let h = the number of hours she works
+7h+=+84+
+h+=+12+
She will have to work 12 hours