SOLUTION: George and Dale have been assigned the same number of math problems for homework. George has finished 20 problems, and Dale has finished 4 problems. If Dale has three times as many

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Question 1168666: George and Dale have been assigned the same number of math problems for homework. George has finished 20 problems, and Dale has finished 4 problems. If Dale has three times as many problems remaining as George does, how many problems was George originally assigned?
Answer by htmentor(1343) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = the number of problems
Then the remaining number of problems for George is: g = x - 20
And for Dale is: d = x - 4
But Dale has three times as many remaining as George, so d = 3g
Solve for x:
3g = x - 4
g = x - 20
---------------
3(x - 20) = x - 4
2x = 56 -> x = 28
Ans: 28 problems