2021-11-03 11:05:47 +0100 received badge ● Student (source) 2021-07-14 21:51:29 +0100 received badge ● Famous Question (source) 2020-12-14 20:30:45 +0100 received badge ● Notable Question (source) 2020-09-08 07:35:37 +0100 received badge ● Popular Question (source) 2019-03-25 18:31:20 +0100 asked a question SUBSTITUTIONS IN SYMBOLIC EXPRESSIONS Hi, I would like to know if it is possible to substitute expressions inside some equation or expression. Consider the following expression: $$(r+1)\cdot(r+2)+g+a$$ Then, I would like to say that I want this same expression for $c+d = 2\cdot r + a$. Is this possible? Can I implement something like this in SAGE? 2019-03-25 18:31:20 +0100 asked a question SUBSTITUTIONS IN SYMBOLIC EXPRESSIONS Hi, I would like to know if it is possible to substitute expressions inside some equation or expression. Consider the following expression: (r+1)*(r+2)+g+a Then, I would like to say that I want this same expression for c+d = r+1 +a. Is this possible? Can I implement something like this in SAGE?