How Do You Isolate dS in the Equation dS(27.0m/s) = (dS + 30.0m)(9.0m/s)?

[Kandy]

solve for dS(distance for Seth)

dS(27.0m/s) = (dS + 30.0m)(9.0m/s)

dS = 15m

how do you get dS on 1 side?

 

[davidananikian]

dS(27.0m/s) = (dS + 30.0m)(9.0m/s)
27ds=9ds+270
18ds=270
ds=270/18
ds=15

Good luck