I have an HP48 with it i solve some expression, but on HP-PRIME,

i don't find how to do the same :

example :

i have the electrical : U=R*I

i want to 'transform it' in CAS style,

ON HP48 i do this :

'U=R*I'

'I'

ISOL

then the calculator answer : I=U/R

How to do this on PRIME ????