X x 12 = 936 + X x 8
X x 12 - X x 8 = 936
X x ( 12 - 8 ) = 936
X x 4 = 936
X = 936 : 4
X = 234
Ta có:
X x 12 = 936 + X x 8
=> X x 12 - X x 8 = 936
=> X x 4 = 936
=> X = 936 : 4 = 234
Chúc bạn học tốt !!! ^^
X x 12 = 936 + X x 8
X x 12 - X x 8 = 936
X x ( 12 - 8 ) = 936
X x 4 = 936
X = 936 : 4
X = 234
Vậy X = 234
x . 12 = 936 + x . 8
x. 12 - x . 8 = 936
x . (12 - 8) = 936
x . 4 = 936
x = 936 : 4
x = 234
X x 12 = 936 + X x 8
X x 4 = 936
X = 936 : 4
X =234