Dear Alec, sorry for inputing images. I just used normal input method provided to me and I thought when i upload the system would automatically check the file uploaded.
However, this is my system. I have put x=delta1-delta2. My variables are E1,E2,delta1,delta2,w1 and w2. u1 and u2 are my inputs. I have tried using the solve command but it doesn't give me w1 as a function of just u1 and u2. same goes for w2.
Thank you for your help