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6-4x = 3x
6=7x /:7
x = 6/7
b) pomnóż obie strony razy 3.
2+x+3x=3
2+4x = 3/-2
4x = 1 /4
x = 0,25
c)= ( 5-1,25) :0,5=
3,75 : 0,5 = 7
d) 24/100 x 350,4 = 84,096 =84,1