\(y.6+y=77\) \(6.9+6.5+6.4\)
\(y\left(6+1\right)=77\) \(=6.\left(9+5+4\right)\)
\(y=\frac{77}{7}=11\) \(=6.18=108\)
hok tốt ( dấu x = . nha)
The answer is
a) 11 ( eleven )
b) 108 ( one hundred and eight )
a yx6+y=77
yx6+yx1=77
yx(6+1)=77
yx7=77
y=77:7
y=11
b 6x9+6x5+6x4
6x(9+5+4)
6x18
108