1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6

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1.(x+5)÷6>(10-x)÷9+12.2x-2≤(10x+1)÷61.(x+5)÷6>(10-x)÷9+12.2x-2≤(10x+1)÷61.(x+5)÷6>(10-x)÷9+12.2x-2≤(

1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6
1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6

1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6
1.(x+5)÷6>(10-x)÷9+1
3(x+5)>2(10-x)+18
3x+15>20-2x+18
5x>23
x>4.6
2.2x-2≤(10x+1)÷6
6(2x-2)≤10x+1
12x-12≤10x+1
2x≤13
x≤6.5

. (x+5)÷6>(10-x)÷9+1
两边乘18
3x+15>20-2x+18
3x+2x=20+18-15
5x>23
x>23/5
2x-2≤(10x+1)÷6
两边乘6
12x-12≤10x+1
12x-10x≤12+1
2x≤13
x≤13/2

1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2} 1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6 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) 几道初中数学题..要有过程 注:x^2 表示x的2次方1.化简:(9x^2+3x)/(x^2+6x+9) * (x^3+27)/(x^2-3x) ÷ (x^2-3x+9)/(x^2-9)2.化简x - x÷{(x^2-y^2)/(x^3+y^3) * [(x-(x^2+y^2)/y ) ÷ (1/x - 1/y)3.化简分式: (x^3 + 5x^2 + 3x - 9)/(x^3 当x=9/2时,求(x^2+7x+10)/(x^2+6x+5)×(x^3+1)/(x^2+4x+4)÷(x^2-x+1)/(x+2) 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 计算:(1)/(x-3)÷(x+2)/(x^2-9)-(1)/(x^2+5x+6) 2/x+1+3/x-1=6/x²-1 4-x/x-4+1/4-x=1 不等组5x-2>3(x+1)x-2大于等于18-x 化简计算(x²/x-3-9/x-3)÷1/x²+3x (x=1/3) 1.x/x-y * y^2/x+y -x^4y/x^4-y^4÷ x^2/x^2+y^2 2.(x^2-4/x^2-x-6+ x+2/x-3)÷ x+1/x-33.(x+1-1/1-x)÷(x- x^2/x-1)4.x-1/x^2+3x+2/6/2+x-x^2-10-x/4-x^21111111111111111111111111111111 计算:1.y/4x²-1/12y²+1/6xy 2.3/x-6/1-x-x+5/x²-x3.x/x-y×y²/x+y-x四次方y/x四次方-y四次方÷x²/x²+y²解方程:1.x-1/(x-2)+1=1/2-x2.x+1/x-1-4/x²-1=13.1/x+3-2/3-x=1/x²-9 (2x-6)/(x^2-9)+(x^2+2x+1)/(x^2+x-6)÷(x+1)/(x-2) 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| 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? 1.计算①(x-1-x+1分之8)×x+3分之x+1;②x+3y分之x-y÷x²+6xy+9y²分之x²-y²-x+y分之2y;③(x-x+1分之2x)÷x²-1分之x²-2x+1④(x²-2x分之x+2-x²-4x+4分之x-1)÷x³-2x²分之x-4 21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272 1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6;2.x³+2/x²-x+1+ x³-9/x²+2x+4=2x-1;3.x-a-b/c+ x-b-c/a+ x-c-a/b=3.(空开的指另一个分式)第二题不用了。 x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a