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2/(7x-1)=5
2=5*(7x-1)
2=35x-5
7=35x
x=1/5
x=0,2
B)
-5/(2x-1)=3
-5=3*(2x-1)
-5=6x-3
-2=6x
x=-1/3
C)
1/(2x-1)=0
(2x-1)*0=1
0≠1
równanie sprzeczne
D)
(2x-1)/(6x+3)=1
2x-1=6x+3
-4=4x
x=-1
E)
(5x-1)/(x-2)=4
5x-1=4x-8
x=-7
F)
(5x-3)/(3x-2)=0
5x-3=0
5x=3
x=3/5
x=0,6