solving for x (i solved for y already, but subbing y into one of the equations seems to be too long of a process, is there another way?)

a)x(b-c)+by-c=0 and y(c-a)-ax+c=0

b)axy +b=(a+c)y and bxy+a=(b+c)y

make x the subject

x+a/x-c + x+c/x-a = 2 SOLVED

thanks