30-x+330-x+x+x/3+10=500求解,
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30-x+330-x+x+x/3+10=500求解,
30-x+330-x+x+x/3+10=500求解,
30-x+330-x+x+x/3+10=500求解,
30-x+330-x+x+x/3+10=500 X/3-X+370=500 X/3-X=130 X(1/3)-X=130 X(1/3-1)=130 X=-390/2 X=-195
2x/3=-130 x=-195
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
30-x+330-x+x+x/3+10=500求解,
80%x+30-x=10%x
3X+30+X+X-15=?
x+35=(x+3x)*30%
3x-x(10-x)=15
(x+30)*(x-18)=x*x
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+X)+(X-X)+(X*X)+(X/X)=100
X×X-(X-10)(X-10)=30×30
x-(30-x)=(30-x)-x/3,怎么解
30(x+5)=26x+10x(x+5)
x+3x-(9x+30x)=98
x-2/3x+x+2/7x=30
X + X + 3 = (10X + X + 3)/4
(x-(x/7.5+x/5))/(x/5)=10/3
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
5/8X-30+3/10X+84=X