Math  /  Word Problems

QuestionA student found 4+x-4+x for x=912x=-9 \frac{1}{2} and got 5125 \frac{1}{2}. What was the student's mistake?

Studdy Solution
However, the student's answer is 5125 \frac{1}{2}, not 512-5 \frac{1}{2}. This suggests that the student might have also made a mistake with the sign, treating 512-5 \frac{1}{2} as 5125 \frac{1}{2}.
In conclusion, the student likely made two mistakes adding instead of subtracting 44 from xx, and ignoring the negative sign of the result.

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