(1)(2a-3)x=3(2-x)解:(2a-3)x=6-3x2ax-3x=6-3x2ax=6x=3/a(2)bx^2-3=x^2-1(b≠1)解:(b-1)x²=2x²=2/(b-1)x=±√[2/(b-1) ]