Question

3x-1 =2 ; x=1

is x=1 the answer or no?

Answer 1

Yes.

Explanation:

If you plug 1 back into the equation for x 3(1)-1=2 you would end up with 3-1=2 because multiplying by one does nothing. Then you subtract the equation. 3-1=2. So you are correct, x=1.