5x+(29-x)*3=29

5x+(29-x)*3=29 用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+. 4x-3(x-5)=2x+(x-1) (3x+29)除以8=4x 7(x+10)=5(4x-10) 5分之2（x-15）+x=69 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 求y=2x+5/x-29（x (3x-62)x9/29=x-(62-x) (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) x-2x+3x-4x+5x.+99x-100x=25求解 2x+3x+4x+5x+x+6x+7x=100 x(x-2)-2x(x+1)-3x(x-5) 其中x=负½ x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 9x+13=29-5x （(29+x)/(5+x)=19/7 7x-3x+59=29 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? 已知3x*x-x=1,求6x*x*x+7x*x-5x+2000 3x+5x=?x等于