[a b c d e f g h i j k l m n o p q r s t u v w]=solve( '2*a+0.91*s-68.98=0', '2*b+0.91*s-58.56=0', '2*c+0.91*s-60.14=0', '2*d+0.91*s-139.48=0', '2*e+0.91*s-0.0=0', '2*f+0.91*s-111.34=0', '2*g-0.000019...有答案吗