Audrey just measured her pet snake and found out that it is 99 inches long, which is 50% longer than the last time Audrey measured. How long was the pet snake last time?

Solution

Solution

Amount before addition : 66

Solution steps

Translate the problem into an equation:

99 = x + 0.5 x

99 = x + 0.5 x : x = 66

Amount before addition : 66

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