1-2x-5/6=3-x/4
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1-2x-5/6=3-x/4
解1-5/6-3=2x-x/4 (移项)
-17/6=7/4x(合并同类项)
x=34/21(化系数为1)
1-2x-5/6=3-x/4 1-3-5/6=2x-x/4 -17/6=7x/4 x=-17/6*(4/7)
=-34/21
1-2x-5/6=3-x/4
1/6-2x=3-x/4
2.25x=17/6
x=34/27
2x-x/4=1+3-5/6
7x/4=4-5/6
7x/4=19/6
x=38/21
1-5/6-3=2x-x/4(两边同加2x,减3)
-2-5/6=(2-1/4)x
-17/6=7/4*x(通分加减)
x=-34/21(两边同乘4/7)
x^6+x^5+x^4+x^3+x^2+x+1=0
1x 2x 3x 4x 5x 6=( )x( )+( )
x^2-3x+1=0,求2x^5-5x^4-x^3+x^2-6x/x^2+1
分式方程问题:解方程:[x+1)/(x+2)]+[(x+6)/(x+7)]=[(x+2)/(x+3)]+[(x+5)/(x+6)]
(x+2/x+1)+ (x+6/x+5)=(x+3/x+2)+(x+5/x+4)怎么解?
方程(x+2)/(x+1)-(x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7)
(X-1/X)=5,且X<0,求x^10+x^6+x^4+1除以x^10+x^8+x^2+1的值
(x-4)(x-2)-(x-1)(x+3),其中x=-2/5
(x+1)(x-4)-6=x^2-3x-4-6=x^2-3x-10=(x+2)(x-5)中x^2-3x-10怎么弄成(x-5)(x+2).
(5/(X-1)(X+2))+(3/(X+2)(X+3))=2/(X-1)(X-3)