Question
Barbara had some pepper in a container. She used 312 kg of the pepper in the morning. She added 4 kg of pepper into the same container in the afternoon. There was 416 kg of pepper in the container in the end. How much pepper did Barbara have at first? Express your answer in its simplest form.
4 m

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Barbara had some pepper in a container. She used 312 kg of the pepper in the morning. She added 4 kg of pepper into the same container in the afternoon. There was 416 kg of pepper in the container in the end. How much pepper did Barbara have at first? Express your answer in its simplest form.