解一元一次方程 ,要过程
(1)1/3(2X-1)=1/2(X+2)+1(2)1/3-1/2(X-1)=1(3)1/3(X+8)=-X(4)1/2(1-M)-1/4(3-3M)=1(5)Y-1/2...
(1)1/3(2X-1)=1/2(X+2)+1
(2)1/3-1/2(X-1)=1
(3)1/3(X+8)=-X
(4)1/2(1-M)-1/4(3-3M)=1
(5)Y-1/2(Y-1)=2-1/5(Y+2)
(6)1/2(3-X)-1/3(X-8)=1
(7)(X+1)/0.2-(X+3)/0.01=3
(8)1/4(X+2)-1/6(2X-3)=1
(9)1/2[X-1/2(X-1)]=2/3(X-1) 展开
(2)1/3-1/2(X-1)=1
(3)1/3(X+8)=-X
(4)1/2(1-M)-1/4(3-3M)=1
(5)Y-1/2(Y-1)=2-1/5(Y+2)
(6)1/2(3-X)-1/3(X-8)=1
(7)(X+1)/0.2-(X+3)/0.01=3
(8)1/4(X+2)-1/6(2X-3)=1
(9)1/2[X-1/2(X-1)]=2/3(X-1) 展开
展开全部
(1)1/3(2X-1)=1/2(X+2)+1
2(2x-1)=3(x+2)+6
4x-2=3x+6+6
x=14
(2)1/3-1/2(X-1)=1
2-3x+3=6
-3x=1
x=-1/3
(3)1/3(X+8)=-X
x+8=-3x
x+3x=-8
x=-2
(4)1/2(1-M)-1/4(3-3M)=1
2-2m-3+3m=4
m=5
(5)Y-1/2(Y-1)=2-1/5(Y+2)
10y-5y+5=20-2y-4
5y+2y=16-5
7y=11
y=11/7
(6)1/2(3-X)-1/3(X-8)=1
9-3x-2x+16=6
-5x=6-25
-5x=-19
x=19/5
(7)(X+1)/0.2-(X+3)/0.01=3
(10x+10)/2-(100x+300)/1=3
10x+10-200x-600=6
-190x=-596
x=596/190
x=298/95
(8)1/4(X+2)-1/6(2X-3)=1
3(x+2)-2(2x-3)=12
3x+6-4x+6=12
-x=0
x=0
(9)1/2[X-1/2(X-1)]=2/3(X-1)
3x-3/2(x-1)=4(x-1)
6x-3x+3=8x-8
3x-8x=-8-3
-5x=-11
x=11/5
2(2x-1)=3(x+2)+6
4x-2=3x+6+6
x=14
(2)1/3-1/2(X-1)=1
2-3x+3=6
-3x=1
x=-1/3
(3)1/3(X+8)=-X
x+8=-3x
x+3x=-8
x=-2
(4)1/2(1-M)-1/4(3-3M)=1
2-2m-3+3m=4
m=5
(5)Y-1/2(Y-1)=2-1/5(Y+2)
10y-5y+5=20-2y-4
5y+2y=16-5
7y=11
y=11/7
(6)1/2(3-X)-1/3(X-8)=1
9-3x-2x+16=6
-5x=6-25
-5x=-19
x=19/5
(7)(X+1)/0.2-(X+3)/0.01=3
(10x+10)/2-(100x+300)/1=3
10x+10-200x-600=6
-190x=-596
x=596/190
x=298/95
(8)1/4(X+2)-1/6(2X-3)=1
3(x+2)-2(2x-3)=12
3x+6-4x+6=12
-x=0
x=0
(9)1/2[X-1/2(X-1)]=2/3(X-1)
3x-3/2(x-1)=4(x-1)
6x-3x+3=8x-8
3x-8x=-8-3
-5x=-11
x=11/5
展开全部
(1)1/3(2X-1)=1/2(X+2)+1
2(2x-1)=3(x+2)+6
4x-2=3x+6+6
4x-3x=6+6+2
x=14
(2)1/3-1/2(X-1)=1
2-3(x-1)=6
2-3x+3=6
-3x=6-3-2
x=-1/3
(3)1/3(X+8)=-X
x+8=-3x
x+3x=-8
4x=-8
x=-2
(4)1/2(1-M)-1/4(3-3M)=1
2(1-m)-(3-3m)=4
2-2m-3+3m=4
-2m+3m=4-2+3
m=5
(5)Y-1/2(Y-1)=2-1/5(Y+2)
10y-5(y-1)=20-2(y+2)
10y-5y+5=20-2y-4
10y-5y+2y=20-4-5
7y=11
y=11/7
(6)1/2(3-X)-1/3(X-8)=1
3(3-x)-2(x-8)=6
9-3x-2x+16=6
-3x-2x=6-9-16
-5x=-19
x=19/5
(7)(X+1)/0.2-(X+3)/0.01=3
5(x+1)-100(x+3)=3
5x+5-100x-300=3
-95x=298
x=-298/95
(8)1/4(X+2)-1/6(2X-3)=1
3(x+2)-2(2x-3)=12
3x+6-4x+6=12
-x=0
x=0
(9)1/2[X-1/2(X-1)]=2/3(X-1)
6[x-1/2(x-1)]=8(x-1)
6x-3(x-1)=8(x-1)
6x-3x-8x=-8-3
-5x=-11
x=11/5
2(2x-1)=3(x+2)+6
4x-2=3x+6+6
4x-3x=6+6+2
x=14
(2)1/3-1/2(X-1)=1
2-3(x-1)=6
2-3x+3=6
-3x=6-3-2
x=-1/3
(3)1/3(X+8)=-X
x+8=-3x
x+3x=-8
4x=-8
x=-2
(4)1/2(1-M)-1/4(3-3M)=1
2(1-m)-(3-3m)=4
2-2m-3+3m=4
-2m+3m=4-2+3
m=5
(5)Y-1/2(Y-1)=2-1/5(Y+2)
10y-5(y-1)=20-2(y+2)
10y-5y+5=20-2y-4
10y-5y+2y=20-4-5
7y=11
y=11/7
(6)1/2(3-X)-1/3(X-8)=1
3(3-x)-2(x-8)=6
9-3x-2x+16=6
-3x-2x=6-9-16
-5x=-19
x=19/5
(7)(X+1)/0.2-(X+3)/0.01=3
5(x+1)-100(x+3)=3
5x+5-100x-300=3
-95x=298
x=-298/95
(8)1/4(X+2)-1/6(2X-3)=1
3(x+2)-2(2x-3)=12
3x+6-4x+6=12
-x=0
x=0
(9)1/2[X-1/2(X-1)]=2/3(X-1)
6[x-1/2(x-1)]=8(x-1)
6x-3(x-1)=8(x-1)
6x-3x-8x=-8-3
-5x=-11
x=11/5
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展开全部
(1)(2/3)X-1/3=(1/2)X=2
(1/6)X=7/3
X=14
(2)1/3-(1/2)X+1/2=1
(1/2)X=1/3-1/2
(1/2)X=-(1/6)
X=-(1/3)
(3)(1/3)X+8/3=-X
(4/3)X=-(8/3)
X=-2
(4)1/2-(1/2)M-3/4+(3/4)M=1
(1/4)M=3/4
M=3
(5)(1/2)Y+1/2=2-(1/5)Y-2/5
(7/10)Y=11/10
Y=11/7
(6)3/2-(1/2)X-(1/3)X+8/3=1
(5/6)X=19/6
X=19/5
(7)X+1-20X-60=0.6
19X=-59.6
X=298/95
(8)(1/4)X+1/2-(1/3)X+1/2=1
(1/12)X=0
X=0
(9)(1/2)[(1/2)X+1/2]=(2/3)X-2/3
(1/4)X+1/4=(2/3)X+2/3
(5/12)X=-(5/12)
X=-1
(1/6)X=7/3
X=14
(2)1/3-(1/2)X+1/2=1
(1/2)X=1/3-1/2
(1/2)X=-(1/6)
X=-(1/3)
(3)(1/3)X+8/3=-X
(4/3)X=-(8/3)
X=-2
(4)1/2-(1/2)M-3/4+(3/4)M=1
(1/4)M=3/4
M=3
(5)(1/2)Y+1/2=2-(1/5)Y-2/5
(7/10)Y=11/10
Y=11/7
(6)3/2-(1/2)X-(1/3)X+8/3=1
(5/6)X=19/6
X=19/5
(7)X+1-20X-60=0.6
19X=-59.6
X=298/95
(8)(1/4)X+1/2-(1/3)X+1/2=1
(1/12)X=0
X=0
(9)(1/2)[(1/2)X+1/2]=(2/3)X-2/3
(1/4)X+1/4=(2/3)X+2/3
(5/12)X=-(5/12)
X=-1
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