## Prealgebra (7th Edition)

Let $h$ be the roadway miles in Hawaii. The roadway miles in Delaware is $h+1931$. $h+h+1931=10673$ $\longrightarrow$combine like terms $2h+1931=10673$ $\longrightarrow$addition property $2h+1931-1931=10673-1931$ $\longrightarrow$combine like terms $2h=8742$ $\longrightarrow$multiplication property $2h\div2=8742\div2$ $\longrightarrow$divide $h=4371$ $h+1931=4371+1931=6302$