# No output from Solve[ ]?

Posted 6 months ago
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 Could someone please look at this and tell me what's wrong? It's probably a simple mistake. I think this system of equations should return {{pd -> -3}, {pd -> 10}}. At least, that's what I get when I use a pencil and paper. But my input below doesn't return anything. Not even an error message.
 The solution set is more complicated than that: Reduce[(js + ps) 6 == w && js (pd + 5) == w && ps pd == w, Reals] // LogicalExpand I don't know the exact reason why Solve gives an empty set in that special case, but with slight changes in syntax we get meaningful answers: eqs = (js + ps) 6 == w && js (pd + 5) == w && ps pd == w; Solve[eqs, Reals] Solve[eqs, {pd, w, ps, js}, Reals] Solve[eqs]