解方程:﹙1﹚1/3﹙x+1﹚=1/7﹙2x-3﹚ ﹙2﹚2x+1/3-5x-1/6=3 ﹙3﹚0.1x+0.2/0.02-x-1/0.5=3

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解方程:﹙1﹚1/3﹙x+1﹚=1/7﹙2x-3﹚ ﹙2﹚2x+1/3-5x-1/6=3 ﹙3﹚0.1x+0.2/0.02-x-1/0.5=3
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解方程:﹙1﹚1/3﹙x+1﹚=1/7﹙2x-3﹚ ﹙2﹚2x+1/3-5x-1/6=3 ﹙3﹚0.1x+0.2/0.02-x-1/0.5=3
解方程:﹙1﹚1/3﹙x+1﹚=1/7﹙2x-3﹚ ﹙2﹚2x+1/3-5x-1/6=3 ﹙3﹚0.1x+0.2/0.02-x-1/0.5=3

解方程:﹙1﹚1/3﹙x+1﹚=1/7﹙2x-3﹚ ﹙2﹚2x+1/3-5x-1/6=3 ﹙3﹚0.1x+0.2/0.02-x-1/0.5=3
(1) x=-16
(2) x=-17/18
(3) x=50/9

1/3(x+1)=1/7(2x-3) 2x+1/3-5x-1/6=2 0.1x+0.2/0.02-x-1/0.5=3
1/3x+1/3=2/7x-3/7 -3x =3+1/6-1/3 0.1x+10-x-2=3
1/3x-2/7x=-1/3-3/7 ...

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1/3(x+1)=1/7(2x-3) 2x+1/3-5x-1/6=2 0.1x+0.2/0.02-x-1/0.5=3
1/3x+1/3=2/7x-3/7 -3x =3+1/6-1/3 0.1x+10-x-2=3
1/3x-2/7x=-1/3-3/7 -3x =17/6 -0.9x =3-8
1/21x= -16/21 x = - 17/18 -0.9x = -5
x = -16/21*21 x=50/9
x= - 16
我第一个楼主,采纳我吧楼主,打得很累的。

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