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)
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x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a