SOLUTION: joseph had 28 magnets and sarah had 157 magnets. after each of them added the same number to their collection, sarah had 4 times as many as joseph. How many did each of them add to

Question 932711: joseph had 28 magnets and sarah had 157 magnets. after each of them added the same number to their collection, sarah had 4 times as many as joseph. How many did each of them add to their collection?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = number added to each collection
157 + x = 4(28 + x)
157 + x = 112 + 4x
3x = 45
x = 15
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