## Algebra 1

The perimeter is less than or equal to 24cm. $p\leq24$ $\longrightarrow$ substitute the given lengths and let s be the unknown side $2s+8\leq24$ $\longrightarrow$ subtract 8 from both sides $2s+8-8\leq24-8$ $\longrightarrow$ simplify $2s\leq16$ $\longrightarrow$ divide both sides by 2 $2s\div2\leq16\div2$ $\longrightarrow$ simplify $s\leq8$