## Prealgebra (7th Edition)

Let $t$ be the distance from LA to Tokyo. The distance from NYC to London is $t-2001$. $t+(t-2001)=8939$ $\longrightarrow$combine like terms $2t-2001=8939$ $\longrightarrow$addition property $2t-2001+2001=8939+2001$ $\longrightarrow$simplify $2t=10940$ $\longrightarrow$multiplication property $2t\div2=10940\div2$ $\longrightarrow$simplify $m=5470$