y-17.8 =-24.5
add 17.8 to each side
y = -24.5+17.8
y=-6.7
Choice B
[tex]y-17.8=-24.5\qquad|\text{add 17.8 to both sides}\\\\y-17.8+17.8=-24.5+17.8\\\\\boxed{y=-6.7}[/tex]
