SOLUTION: Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 2 more than 4 times the number of marbles Mark has, how many does each boy have to s
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Question 1036811: Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 2 more than 4 times the number of marbles Mark has, how many does each boy have to sell if the total number of marbles is 82?
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
M+D = 82 marbles
M = 82-D We'll use this value for M next:
D = 4M+2
D = 4(82-D)+2
D = 328-4D+2
5D = 330
D = 66
Don has 66 and Mark has 82-66 = 16
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