## Algebra 1: Common Core (15th Edition)

$-7$ $1.5-8.5=-7$
If we have 1.5 and take away 8.5, we are left with -7. In other words, if we start at 1.5 on the number line and move 8.5 units to the left, we are at -7. Thus, we conclude: $1.5-8.5=-7$