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a)k=7n ; n
n=k/7
b)a=k+6 ; k
k=a-6
c)z=7-y ;y
y=7-z
d)d=a+bc ;c
bc=d-a
c=(d-a)/b
e)x=2k+1; k
2k=x-1
k=1/2 x- 1/2
f)2k=7n+5; n
7n=2k-5
n=(2k-5)/7
k/7=n
b)a= k+6 /-6
a-6=k
c)z = 7-y /+y
z+y=7 /podzielić na z
y= 7/z
d)d=a+bc /-a
d-a=bc /podzielić na b
(d-a)/b=c
e)x=2k+1 /-1
x-1=2k /podzielić na 2
(x-1)/2=k
f)2k=7n+5 /-5
2k-5=7n /podzielić na 7
(2k-5)/7=n
Jakby co to TO---->/to podzielić:D