Write the algebraic equation for the following statement.
$20$ fewer students than last year. Number of students in this year is $80$ .

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Solution

Find the equation:
Let, number of students last year = $x$
Number of students this year = $x - 20$
So, $x - 20 = 80$
Hence, the equation is $x - 20 = 80$ .

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300

40

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