1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2(3-2x)=1;2x+1/3-5x-1=1
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1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2(3-2x)=1;2x+1/3-5x-1=11/4x-1/2=3/4;7x-5/
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2(3-2x)=1;2x+1/3-5x-1=1
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2(3-2x)=1;2x+1/3-5x-1=1
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2(3-2x)=1;2x+1/3-5x-1=1
1/4x-1/2=3/4
1/4X=3/4+1/2
1/4X=5/4
X=5/4*4
X=5
7x-5/4=3/8
7X=3/8+5/4
7X=13/8
X=(13/8)/7
X=13/56
2x-1/6=5x+1/8
5X-2X=-1/6-1/8
3X=-7/24
X=(-7/24)/3
X=-7/72
1/2x-7=9x-2/6
9X-1/2X=-7+2/6
17/2X=-20/3
X=(-20/3)/(17/2)
X=(-20/3)*(2/17)
X=-40/51
1/5x-1/2(3-2x)=1
1/5X-1/2*3+1/2*2x=1
1/5X+X-3/2=1
6/5X=1+3/2
6/5X=5/2
X=(5/2)*(5/6)
X=25/12
2x+1/3-5x-1=1
2X-5X=1+1-1/3
-3X=5/3
X=(5/3)*(-1/3)
X=-5/9
*-----------------------------------------------*| 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 ||
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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
已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10|
如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值,
(x+1)(x+2)(x+3)(x+4)-(x^2+5x+3)(x^2+5x+7)=?
已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10)
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11=17.7这个方程怎么样求解?
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
x-2/x-1+x-8/x-7=x-4/x-3+x-6/x-5
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程 (x+2)/(x+1) - (x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7)
1x+2x+3x+4x+5x+6x+7x…+99x=100
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7
2x(7-3x)+5x(2x+1)=x(4x-3)+32
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x