Wykonaj działania: a) 4x + x =
b) 3a + 4a =
c) 5y - y =
d) 3,5a - a =
e) x + 0,6x =
plis daje naj
b) 3a + 4a =
c) 5y - y =
d) 3,5a - a =
e) x + 0,6x =
plis daje naj
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