作业帮4/3【（x-100)+1/3(x-100)-100]=x 4/3【（x-100)+1/3(x-100)-100]=x
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4/3【（x-100)+1/3(x-100)-100]=x 4/3【（x-100)+1/3(x-100)-100]=x
4/3【（x-100)+1/3(x-100)-100]=x
4/3【（x-100)+1/3(x-100)-100]=x
4/3【（x-100)+1/3(x-100)-100]=x 4/3【（x-100)+1/3(x-100)-100]=x
x=400
4/3[（x-100)+1/3(x-100)-100]=x
4/3(x-100)+4/9(x-100)-400/3=x 两边同时乘以9得
12(x-100)+4(x-100)-1200=9x
12x-1200+4x-400-1200=9x
12x+4x-9x=1200+400+1200
7x=2800
x=400
*-----------------------------------------------*| 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-1)/(x+3x+2)+6/(2+x-x)-(10-x)/(4-x)
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
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
1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)+...+1/(x+100)(x+101)
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|
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：2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
1x+2x+3x+4x+5x+6x+7x…+99x=100
(x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)怎么算?
计算（x*x+4x+5）/（x+2）-（x*x+6x+10）/（x+3）+1
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100-2x+5x=120(x+3)×5-2x=30100-(4x+1)-(4x+1)=204x+8=6x-10
100-2x+5x=120(x+3)×5-2x=30100-(4x+1)-(4x+1)=204x+8=6x-10
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4