(x-45)x27=0
(x-45) =0:27
x-45 =0
x =0+45
x =45
(x - 45) x 27 = 0
=> x - 45 = 0 : 27
=> x - 45 = 0
=> x = 0 + 45
=> x = 45
Vậy x = 45
(x-45). 27 = 0
X-45 = 0:7
X-45 =0
X =0+45
X =0
(x-45)*27=0 ==> x-45=0 ==> x=0+45=45
(X - 45) x 27 = 0
(X - 45) = 0 : 27
(X - 45) = 0
X = 0 + 45
X = 45