Algebra 1

$-5\leq d\leq5$
$|4d|\leq20\longrightarrow$ write as a compound inequality $-20\leq4d\leq20\longrightarrow$ divide all parts by 4 $-20\div4\leq4d\div4\leq20\div4\longrightarrow$ divide $-5\leq d\leq5$