(1)2x+3-2(x+5)=x (2)2(2x-1)-(x-3)=1 (3)8x-2(1-x)=7x-3(x-1) (
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(1)2x+3-2(x+5)=x (2)2(2x-1)-(x-3)=1 (3)8x-2(1-x)=7x-3(x-1) (4)2(10-0.5y)=-(1.5y-2)
要有每一步的过程.
要有每一步的过程.
![(1)2x+3-2(x+5)=x (2)2(2x-1)-(x-3)=1 (3)8x-2(1-x)=7x-3(x-1) (](/uploads/image/z/18937327-31-7.jpg?t=%EF%BC%881%EF%BC%892x%2B3-2%28x%2B5%29%3Dx+%EF%BC%882%EF%BC%892%EF%BC%882x-1%EF%BC%89-%EF%BC%88x-3%EF%BC%89%3D1+%EF%BC%883%EF%BC%898x-2%EF%BC%881-x%EF%BC%89%3D7x-3%EF%BC%88x-1%EF%BC%89+%28)
(1)2x+3-2(x+5)=x (2)2(2x-1)-(x-3)=1 (3)8x-2(1-x)=7x-3(x-1)
2x+3-2x-10=x 4x-2-x+3=1 10x-2=4x+3
-7=x x=0 x=5/6
(4)2(10-0.5y)=-(1.5y-2)
20-y=-1.5y+2
0.5y=-18
y=-36
2x+3-2x-10=x 4x-2-x+3=1 10x-2=4x+3
-7=x x=0 x=5/6
(4)2(10-0.5y)=-(1.5y-2)
20-y=-1.5y+2
0.5y=-18
y=-36
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
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6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
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2x²+7x+1=0 x(x-1)=3x+7
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