SOLUTION: A giraffe noticed that each winter he gains 5 kilograms of weight, and each summer he loses 4 kilograms. During the spring and fall, his weight does not change. In the spring of 20

Question 1065450: A giraffe noticed that each winter he gains 5 kilograms of weight, and each summer he loses 4 kilograms. During the spring and fall, his weight does not change. In the spring of 2008 he weighed 100 kilograms. How much did he weigh in the fall of 2004?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
winter 2005 gain 5. If he started with x kg, weight is x+5. In the summer, he loses four and is now x+1. In the winter of 2006, he now weighs x+6 and in the summer of 2006 drops to x+2. In the winter of 2007 goes to x+7 and in the summer of 2007 drops to x+3. In the winter of 2008 he weighs x+8. Not sure where I got 93, because if he weighs 100 kg now, at x+8,he started at 92 kg for x.
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