High School

Malachy was thinking of a number. Malachy adds 2 to it, then doubles it and gets an answer of 99.8. What was the original number?

Answer :

Answer:

47.9

Step-by-step explanation:

x + 2 = y

y × 2 = 99.8

99.8 ÷ 2 = 49.9

y = 49.9

49.9 - 2 = 47.9

x = 47.9

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