2(x+3) / 5 = 3/2x-2(x-7) / 3x-2 /0.2 - x+1 /0.5 =31/2[x-1/2(x+1)]=2/3(x-1)

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2(x+3) / 5 = 3/2x-2(x-7) / 3x-2 /0.2 - x+1 /0.5 =31/2[x-1/2(x+1)]=2/3(x-1)
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2(x+3) / 5 = 3/2x-2(x-7) / 3x-2 /0.2 - x+1 /0.5 =31/2[x-1/2(x+1)]=2/3(x-1)
2(x+3) / 5 = 3/2x-2(x-7) / 3
x-2 /0.2 - x+1 /0.5 =3
1/2[x-1/2(x+1)]=2/3(x-1)

2(x+3) / 5 = 3/2x-2(x-7) / 3x-2 /0.2 - x+1 /0.5 =31/2[x-1/2(x+1)]=2/3(x-1)
2(x+3) / 5 = 3/2x-2(x-7) / 3
理解为如下表达式:
2(x+3)/ 5 = (3/2)x-2(x-7) / 3
6(x+3) = 15*(3/2)x-10(x-7)
6x+18 =(45/2)x-10x+70
16x=(45/2)x+52
0=(13/2)x+52
(13/2)x=-52
x=-52 *2/13
x=-8
x-2 /0.2 - x+1 /0.5 =3
理解为如下表达式:
(x-2)/0.2 - (x+1) /0.5 =3
5*(x-2) - 2*(x+1) =3
5x-10 - 2x-2=3
3x=15
x=5
1/2[x-1/2(x+1)]=2/3(x-1)
理解为如下表达式:
(1/2)[x-(1/2)(x+1)]=(2/3)(x-1)
2x-(x+1)]=4*(2/3)(x-1)
x-1=(8/3)x-8/3
5/3=(5/3)x
x=1

亲,第一道和第三道不是一元一次方程

*-----------------------------------------------*| 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 || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3) x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) x(x-2)-2x(x+1)-3x(x-5) 其中x=负½ 解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 x-2x+3x-4x+5x.+99x-100x=25求解 2x+3x+4x+5x+x+6x+7x=100 x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x- x^5-2x^3+x=? x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4 1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x