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During a science experiment, Peter found the temperature of a certain liquid to be −a∘ Centigrade after he had raised the temperature by x degrees.Write an expression to represent the temperature of the liquid at the start of the experiment, before it was raised.



Answer :

AL2006
The original temperature was 'x' degrees below '-a'. That's (-a - x), or -(a+x).

Answer:

24

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