Question

This year, 72 students completed projects for the science fair. This was 23 more students than last year. How many students completed projects for the science fair last year?

Answer 1

Last year: 49 students

Explanation:

There were 23 more students this year than last year. This means that 72 is equivalent to x, or a random number, plus 23

If 23 + x =72

Then x = 72 - 23

Which means that x = 49, or that the number of students that completed projects for the science fair is 49.

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