Toán Lớp 6: Bài 4. Tìm số nguyên x, biết:
a) $\dfrac{x}{1}$ = ${-}12
b) $\dfrac{x}{-7}$ = $\dfrac{15}{21}$
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 6: Bài 4. Tìm số nguyên x, biết:
a) $\dfrac{x}{1}$ = ${-}12
b) $\dfrac{x}{-7}$ = $\dfrac{15}{21}$
Comments ( 2 )
a)x/1=-12
x=(-12).1
x=-12
Vậy x=-12
b)x/(-7)=15/21
x.21=(-7).15
x.21=-105
x=(-105):21
x=-5
Vậy x=-5
@Ki ng
a) x/1= -12
x/1= -12/1
x.1= -12.1
x.1= -12
x= -12:1
x= -12
Vậy x= -12
b) x/-7= 15/21
x.21= -7.15
x.21= -105
x= -105:21
x= -5
Vậy x= -5
#Jo