x - 4x+1 kreska ułamkowa przez 5 =jedna czwarta
x-4x+1:5=14
(x-4x+1):5 = ¼ / * 20
4(x-4x+1)=5
4x-16x+4=5
4x-16x=5-4
-12x=1 / : ( - 12 )
x= - 1/12
x- (4x+1)/5 =1/4 /*20
20x-4(4x+1)=5
20x-16x-4=5
4x=9
x=9/4
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(x-4x+1):5 = ¼ / * 20
4(x-4x+1)=5
4x-16x+4=5
4x-16x=5-4
-12x=1 / : ( - 12 )
x= - 1/12
x- (4x+1)/5 =1/4 /*20
20x-4(4x+1)=5
20x-16x-4=5
4x=9
x=9/4