Toán Lớp 6: Số nguyên x thoả mãn 60:(-5x)=2 là:
A 6
B -24
C 24
D -6
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Toán Lớp 6: Số nguyên x thoả mãn 60:(-5x)=2 là:
A 6
B -24
C 24
D -6
Comments ( 2 )
Số nguyên x thoả mãn 60:(-5x)=2 là:
A 6
B -24
C 24
D -6
$\longrightarrow$ $\text{60:(-5x)=2}$
$\longrightarrow$ $\text{-5x=60:2}$
$\longrightarrow$ $\text{-5x=30}$
$\longrightarrow$ $\text{x=30:(-5)}$
$\longrightarrow$ $\text{x=(-6)}$
$#AS$
60 : (-5x) = 2
-5x = 60 : 2
-5x = 30
x = 30 : (-5)
x = -6
=> Chọn D