Hello, I have some question

It is possible to display values in equations?
for example:

A=1
B=2

and I want:

C=A+B=1+2=3
How can I display "1+2"?

thank you

thank you! I'm sorry, I didn't find it

It is better, but it isn't exactly..the first example was bad, sorry
better example:
a=3m
b=4m

c=(a^2+b^2)^(1/2)=(3^2+4^2)^(1/2)=5m

I want only numbers without units in equation and result with unit..do you know some plugin that can do it this way? or it will not work?

Edited by user 25 May 2015 15:09:55(UTC)  | Reason: Not specified