solve(2^x=3,x) correctly gets x=log(3)/log(2), but solve((2/3)^x=3,x) is treated as 2^x/3^x=3, from which solve cannot isolate x. I'd think this would be fairly straightforward to fix.... -s On Tue, Mar 27, 2012 at 11:13, Victor Hermans <vhfhermans at gmail.com> wrote: > solve([7650*1.037^x=12250], [x]);