6x+12.5-2x=22.5
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6x+12.5-2x=22.56x+12.5-2x=22.56x+12.5-2x=22.56x+12.5-2x=22.54x=22.5-12.54x=10x=2.5希望对你有帮助O(∩_∩)O6x+1
6x+12.5-2x=22.5
6x+12.5-2x=22.5
6x+12.5-2x=22.5
6x+12.5-2x=22.5
4x=22.5-12.5
4x=10
x=2.5
希望对你有帮助 O(∩_∩)O
6x+12.5-2x=22.5
4x=22.5-12.5
4x=10
x=5/2(或写成2.5)
x=2.5
6x+12.5-2x=22.5
4x=10
x=2.5
6x+12.5-2x=22.5
6x-2x=22.5-12.5
4x=10
x=2.5
4x=10 x=2.5
(6x-2x)=22.5-12.5
4x=10
x=2.5
6x+12.5-2x=22.5
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
(x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一
2x-1.5x+6=12.5
A={x|x^2+x-6
x/(x^2+6x+18)=?
A={x|x^2+x-6
1.用公式计算:COSX=1-X*X/2!X*X*X*X/4!-X*X*X*X*X*X/6!.直到最后一项的绝对
*-----------------------------------------------*| 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 ||
6x-x=12.5
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-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