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x= 3/6 = 1/2
b) -3x= 7 /-3
x= -7/3 = - 2 i jedna piąta
c) 2x= 1/5 / 2
x=1/10
d) 1.2x =4.8 /1.2
x= 4
e) 1/3 x=3 / jedna trzecia
x= 9
f) -3/5 x = -5 / - trzy piąte
x= 25/3 = 8 jedna trzecia