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)/3x-2/0.2-x+1/0.5
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
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