化简:6x-28-2.5x+30.5

化简:6x-28-2.5x+30.5 [ 6x-28-2.5x+30.5 ]简化[ (5x+7)-(4x+0.18) 6x-28-2.5x+30.5怎么化简? 6A+12A化简6X-28-2.5X+30.5化简8A-(5A+8)化简（5x+7)-(4X+0.18) 化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8） （5x+7）-(4x+0.18) 化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) (x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x X乘X减2.5X=6,　　求X! 化简 |x-6|+|x+2| 化简x^5+x^6 化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x) (x^2+3x+9)/(x^2-9)+6x/(9x-x^2)-(x-1)/(6+2x)化简 化简:x平方-x-2/x平方-x-6除以x平方+4x-5/x平方+2x-10 化简x^2(x-1)-x(x^2+2x-6),其中x=2/1 化简（x+2)(x的平方-6x-9）-（x-5)(x-3)x (x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简, 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||