[ 6x-28-2.5x+30.5 ]简化[ (5x+7)-(4x+0.18)

化简:6x-28-2.5x+30.5 6x-28-2.5x+30.5怎么化简? [ 6x-28-2.5x+30.5 ]简化[ (5x+7)-(4x+0.18) 6x-28-2.5x+30.5这个式子怎么化简 把6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18）这几个算试如何化简?①6a+13a② 6x-28-2.5x+30.5③ 8a-(5a+8) ④ (5x+7)-(4x+0.18）看不清哈 X乘X减2.5X=6,　　求X! *-----------------------------------------------*| 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 || 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) 化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) 化解这些题6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) 6A+12A化简6X-28-2.5X+30.5化简8A-(5A+8)化简（5x+7)-(4X+0.18) x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6) 化简 6x－28－2.5x＋30.5 还有也是化简 8a－（5a＋8）还有啊 （5x＋7）－（4x＋0.18） 这些都是化简. 化简求值.(x-2)(x²-6x-9)-x(x-3)(x+3) 其中x=三分之一 6x/x^2+x-12,x+2/3-x,x-1/x的最简公分母是?