Tell WolframAlpha what variables I use

Question

When you write something like "X1 + Wa + Wb + L + Ra" Wolfram will say "Assuming "L" is a unit link

Can I write something to tell Wolfram that X1,Wb,Wa,L,Ra are variables?

For example on matlab I can write "syms X1 Wb Wa L Ra"

Answer 1

I can get Wolfram|Alpha to accept L...however, I cannot get it to take variables with multiple letters in the name. It assumes that any adjacent letters refer to multiplication, rather than a variable with several letters in its name.

You can just only single letter variable names: find x + a + b + L + R for x=1, a=2, b=3, L=4, R=5: see here.

You can also use X_1 instead of just X, however you cannot use Wa or W_a. You can also use greek letter names, such as alpha.