Good morning, I have one problem with Mathematica. In the same equation, I have A and Ar. When I want to make one value for A=4 and Ar=10 for example, I will have in the equation 4r (Mathematica replace Ar by 4r). I don't know what the problem is.
I don"t want to solve, A want only to replace the first variable A=4 and the second one Ar=10. Mathematica replace A by 4, and Ar by 4r (4r is without any sens).
It would help if you posted your code in a code block. But perhaps you meant:
In[44]:= Solve[{a == 4, a r == 10}] Out[44]= {{a -> 4, r -> 5/2}} In[45]:= Reduce[a r == 10 /. a -> 4] Out[45]= r == 5/2
I am sure for this, any space between them
make sure there is no space between the A and the r in Ar
