求数学书16.3第一题解方程答案.(1)1/x=5/x+3(2)x/x-1=3/2x-2 -2(3) 2/2x-1=4/4x2(4)3/x2+2x - 1/x2-2x =0(5) x/x-3=x+1/x-1(6)x-3/x-2+1=3/2-x(7)2x+1/x2+x=5/6x+6(8)3/2-1/3x-1=5/6x-2
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![求数学书16.3第一题解方程答案.(1)1/x=5/x+3(2)x/x-1=3/2x-2 -2(3) 2/2x-1=4/4x2(4)3/x2+2x - 1/x2-2x =0(5) x/x-3=x+1/x-1(6)x-3/x-2+1=3/2-x(7)2x+1/x2+x=5/6x+6(8)3/2-1/3x-1=5/6x-2](/uploads/image/z/370113-33-3.jpg?t=%E6%B1%82%E6%95%B0%E5%AD%A6%E4%B9%A616.3%E7%AC%AC%E4%B8%80%E9%A2%98%E8%A7%A3%E6%96%B9%E7%A8%8B%E7%AD%94%E6%A1%88.%EF%BC%881%EF%BC%891%2Fx%3D5%2Fx%2B3%EF%BC%882%EF%BC%89x%2Fx-1%3D3%2F2x-2+-2%283%29+2%2F2x-1%3D4%2F4x2%EF%BC%884%EF%BC%893%2Fx2%2B2x+-+1%2Fx2-2x+%3D0%285%29+x%2Fx-3%3Dx%2B1%2Fx-1%286%29x-3%2Fx-2%2B1%3D3%2F2-x%287%292x%2B1%2Fx2%2Bx%3D5%2F6x%2B6%288%293%2F2-1%2F3x-1%3D5%2F6x-2)
求数学书16.3第一题解方程答案.(1)1/x=5/x+3(2)x/x-1=3/2x-2 -2(3) 2/2x-1=4/4x2(4)3/x2+2x - 1/x2-2x =0(5) x/x-3=x+1/x-1(6)x-3/x-2+1=3/2-x(7)2x+1/x2+x=5/6x+6(8)3/2-1/3x-1=5/6x-2
求数学书16.3第一题解方程答案.
(1)1/x=5/x+3
(2)x/x-1=3/2x-2 -2
(3) 2/2x-1=4/4x2
(4)3/x2+2x - 1/x2-2x =0
(5) x/x-3=x+1/x-1
(6)x-3/x-2+1=3/2-x
(7)2x+1/x2+x=5/6x+6
(8)3/2-1/3x-1=5/6x-2
求数学书16.3第一题解方程答案.(1)1/x=5/x+3(2)x/x-1=3/2x-2 -2(3) 2/2x-1=4/4x2(4)3/x2+2x - 1/x2-2x =0(5) x/x-3=x+1/x-1(6)x-3/x-2+1=3/2-x(7)2x+1/x2+x=5/6x+6(8)3/2-1/3x-1=5/6x-2
(1)方程两边同乘x(x+3),得x+3=5x,x-5x=-3,-4x=-3,x=3/4.
(2)方程两边同成2(x-1),得2x=3-4(x-1),2x=3-4x+4,2x+4x=3+4,6x=7,x=7/6
(3)方程两边同乘(2x-1)(2x+1),得2(2x+1)=4,4x+2=4,4x=4-2,4x=2,x=1/2
(4)方程两边同乘x(x+2)(x-2),得3(x-2)-(x+2)=0,3x-6-x-2=0,3x-x=6+2,2x=8,x=4
(5)方程两边同乘(x-3)(x-1),得x(x-1)=(x+1)(x-3),x^2-x=x^2-2x-3,2x-x=-3,x=-3
(6)方程两边同乘(x-2),得x-3+x-2=-3,2x=-3+3+2,2x=2,x=1
(7)方程两边同乘6x(x+1),得6(2x+1)=5x,12x+6=5x,12x-5x=-6,7x=-6,x=-6/7
(8)方程两边同乘2(3x-1),得3(3x-1)-2=5,9x-3-2=5,9x=5+3+2,9x=10,x=10/9