## Algebra 1

$\{n\ |\ n\gt-13\}\cap\{n\ |\ n\leq14\}$
$-6\lt n+7\leq21\longrightarrow$ subtract 7 from each part $-6-7\lt n+7-7\leq21-7\longrightarrow$ subtract $-13\lt n\leq14$ This solution can be written as $n\gt -13$ AND $n\leq14$ A compound inequality joined by AND is the intersection of the two solution sets.