Define variable based on solve output

I’ve been used to work with Mathcad prime 4 and 5. In those versions I could define a variable based on the output from the solve function simply by “:=” between the variable and the equation. That way I could use the output in subsequent calculations. I now have Mathcad prime 8 and this doesn’t work anymore. I can see there has been a change to “The new symbolic engine” in the versions in between. My question is how to define a variable based on the output from the solve function with the new symbolic engine?

I’ve added screen shots of an example of the output in Mathcad prime 5 and 8.

Best Frederik