Mathematica gives 1. Int[1]:= 1 - x /. Solve[1 + x == 1, x] Out[1]= {1}

eccstartup on April 22, 2015 | parent | context | favorite | on: If 1+x is 1, how much is 1-x?

Mathematica gives 1.

    Int[1]:= 1 - x /. Solve[1 + x == 1, x]
    Out[1]= {1}