a) 2436 : x = 12
x = 2436 : 12
x = 203
b) 6 . x - 5 = 613
6 . x = 613 + 5
6 . x = 618
x = 618 : 6
x = 103
c) 12 . ( x - 1 ) = 0
x - 1 = 0 : 12
x - 1 = 0
x = 0 + 1
x = 1
d) 0 : x = 0
x = 0 : 0
\(\Rightarrow\)không có x thỏa mãn
K MK NHA BN
THANK BN NHÌU
a) 2436 : x = 12
x = 2436 : 12
x = 203
b) 6 . x - 5 = 613
6 . x = 613 + 5
6 . x = 618
x = 618 : 6
x = 103
c) 12 . (x - 1) = 0
x - 1 = 0 : 12
x - 1 = 0
x = 0 + 1
x = 1
d) 0 : x = 0
x \(\in\)N*