求大神解分式方程和其他题:1/2x-6 = 1/2 - 3/3-x如题,(1)计算:x+3/x²+x+2/x+1(2)解方程:1/2x-6 = 1/2 - 3/3-x(3)解方程:x/2x-3 - 5/3-2x=4(4)化简:-b·b/2a / 1/a =(5)先化简,后求值:当x=5时,求

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求大神解分式方程和其他题:1/2x-6 = 1/2 - 3/3-x如题,(1)计算:x+3/x²+x+2/x+1(2)解方程:1/2x-6 = 1/2 - 3/3-x(3)解方程:x/2x-3 - 5/3-2x=4(4)化简:-b·b/2a / 1/a =(5)先化简,后求值:当x=5时,求
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求大神解分式方程和其他题:1/2x-6 = 1/2 - 3/3-x如题,(1)计算:x+3/x²+x+2/x+1(2)解方程:1/2x-6 = 1/2 - 3/3-x(3)解方程:x/2x-3 - 5/3-2x=4(4)化简:-b·b/2a / 1/a =(5)先化简,后求值:当x=5时,求
求大神解分式方程和其他题:1/2x-6 = 1/2 - 3/3-x
如题,
(1)计算:x+3/x²+x+2/x+1
(2)解方程:1/2x-6 = 1/2 - 3/3-x
(3)解方程:x/2x-3 - 5/3-2x=4
(4)化简:-b·b/2a / 1/a =
(5)先化简,后求值:当x=5时,求(x- x-4/x-3) / x²-4/x-3
(6)解方程:1/x²-1 + 2/x+1 = 0

求大神解分式方程和其他题:1/2x-6 = 1/2 - 3/3-x如题,(1)计算:x+3/x²+x+2/x+1(2)解方程:1/2x-6 = 1/2 - 3/3-x(3)解方程:x/2x-3 - 5/3-2x=4(4)化简:-b·b/2a / 1/a =(5)先化简,后求值:当x=5时,求
⑴、(x+3)/(x^2+x)+2/(x+1)=3(x+1)/x(x+1)=3/x;
⑵、1/(2x-6)=1/2-3/(3-x)=(x-3+6)/(2x-6),——》x+3=1,——》x=-2;
⑶、x/(2x-3)-5/(3-2x)=(x+5)/(2x-3)=4,——》x+5=8x-12,——》x=17/7;
⑷、原式=-b^2/2;
⑸、原式=(x-2)/(x+2)=(5-2)/(5+2)=3/7;
⑹、1/(x^2-1)+2/(x+1)=(1+2x-2)/(x^2-1)=0,
——》2x-1=0,
——》x=1/2.