5X+45=7X+3 12Xx25%+(3200-12X)x20%=700 (580-x)+[600-(x+272)]=
12Xx25%+(3200-12X)x20%=700 5X+45=7X+3 (580-x)+[600-(x+272)]=
5X+45=7X+3 12Xx25%+(3200-12X)x20%=700 (580-x)+[600-(x+272)]=
(X=乘号)55X20%=
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!)+.
如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
int Value = 0x20;Value =Value&0x20;Printf("Value=%x\n",Value
一道数学方程:12x(注:这个小的是乘号)X25%+(3200-12X)x20%=700.怎么解,不要1步就完.
1.解方程. / 4X20=56、1.8+7X=3.9、5X-8.3=10.7
1.解方程./ 4X20=56、1.8+7X=3.9、5X-8.3=10.7
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?