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

Let x be the bird’s air speed and y be the bird’s wind speed. We have the system: $x+y=3$ $x-y=1.5$ Use elimination to solve the system $x+y=3$ $x-y=1.5$ ______________ $2x=4.5$ $x=2.25$ $\rightarrow y=0.75$