How do you evaluate $7r - 15/s - 11$ when $r = 3$ and $s = 5$ ?

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Answer 1 · 2018-03-25T18:03:06

7

Given:
The expression $7r - 15/s- 11$ and r = 3 and s = 5;

We substitute the respective values in the expression:
$:. 7*3 - cancel(15)/cancel(5) -11 = 21 - 3 - 11 = color(red)(7)$

How do you evaluate 7r - 15/s - 117r - 15/s - 11 when r = 3r = 3 and s = 5s = 5?