Wyznacz a, b oraz c
bc=27-a(b-c)
bc = 27 - a(b - c)
bc = 27 - ab + ac
bc + ab = 27 + ac
b(c + a) = 27 + ac
b = (27 + ac) / (c + a)
bc - 27 = ac - ab
a(c - b) = bc - 27
a = (bc - 27) / (c - b)
bc - ac = 27 - ab
c(b - a) = 27 - ab
c = (27 - ab) / (b - a)
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bc = 27 - a(b - c)
bc = 27 - ab + ac
bc + ab = 27 + ac
b(c + a) = 27 + ac
b = (27 + ac) / (c + a)
bc = 27 - ab + ac
bc - 27 = ac - ab
a(c - b) = bc - 27
a = (bc - 27) / (c - b)
bc = 27 - ab + ac
bc - ac = 27 - ab
c(b - a) = 27 - ab
c = (27 - ab) / (b - a)