3x+3=-5x-3x+5=-2(x-3)2y-1/3-2-y/2=-11/4(x+5)=1/7(x+1)-5/28
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3x+3=-5x-3x+5=-2(x-3)2y-1/3-2-y/2=-11/4(x+5)=1/7(x+1)-5/283x+3=-5x-3x+5=-2(x-3)2y-1/3-2-y/2=-11/4(x+
3x+3=-5x-3x+5=-2(x-3)2y-1/3-2-y/2=-11/4(x+5)=1/7(x+1)-5/28
3x+3=-5x-3
x+5=-2(x-3)
2y-1/3-2-y/2=-1
1/4(x+5)=1/7(x+1)-5/28
3x+3=-5x-3x+5=-2(x-3)2y-1/3-2-y/2=-11/4(x+5)=1/7(x+1)-5/28
x=-3/4
x=1/3
y=8/9
x=-12
①3x+3=-5x-3
3x+5x=-6
8x=-6
x=-3/4②x+5=-2(x-3)
x+5=-2x+6
x+2x=6-5
x=1/3③2y-1/3-2-y/2=-1
3y/2=-1+1/3+2
3y/2=4/3
y=-8/9④1/4(x+5)=1/7(x+1)-5/28
7(x+5)=4(x+1)-5
7x+35=4x+4-5
4x-3x=35+1
x=36
3x+3=-5x-3
8x=-6
x=-0.75
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!)+.
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
*-----------------------------------------------*| 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 ||
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
(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(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x^5-2x^3+x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
8x+3(x-2)=5x+(x-3)
5x/(x-2)-2=3(x-2)/x
(X-5)(X+3)+(X-2)(X+4)=26
x(x+2)(x+3)(x+5)=7
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少