Answer
-2
Work Step by Step
To find the missing coefficient in the first expression, transform the second expression such that the left side is 14.
$s\lt-7\longrightarrow$ multiply both sides by -2; reverse the inequality
$s\times-2\gt-7\times-2\longrightarrow$ multiply
$-2s\gt14$
The missing coefficient of s is -2.