1, y x 2 x 4 = 32
y = 32 : ( 4 x 2 )
y = 4
2, X x 8 + 74 = 130
X = ( 130 - 74 ) : 8
X = 7
3, 84 : 3 = 28
~ Chúc bạn học tốt ~
1, yx2x4 = 32 => yx8 = 32 => y = 32:8 => y=4
2, Xx8+74 = 130 => Xx8 = 130-74 => Xx8 = 56 => X = 56:8 => X=7
3, 84:3=24
!!!@@@
y x 2 x 4 = 32 X x 8 + 74 = 130 3,84 : 3 = 1,28
y x 8 = 32 X = ( 130 - 74 ) : 8
y = 32 : 8 X = 7
y = 4
k mjk nha các bn (^ _ ^)
1, y x 2 x 4 = 32
y x 2 = 32 : 4
y x 2 = 8
y = 8 : 2
y = 4
2, X x 8 + 74 = 130
X x 8 = 130 - 74
X x 8 = 56
X = 56 : 8
X = 7
3, 84 : 3 = 28
1,y.2x4=32
x.8=32
y =32:8
y=4
2,x.8+74=130
x.8 =130-74
x.8 =56
x =56:8
x =7
3,84:3=28