theo mình đoán là:
y = 60
chúc bạn học tốt !!!
y + y x 1/3 : 2/9 + y : 2/7 = 360
=> y + y x 1/3 x 9/2 + y x 7/2 = 360
=> y + y x 3/2 + y x 7/2 = 360
=> y x ( 1 + 3/2 + 7/2 ) = 360
=> y x 6 = 360
=> y = 360 : 6
=> y = 60
Vậy y = 60
Chúc bạn học tốt !!!
\(y+y\times\frac{1}{3}:\frac{2}{9}+y:\frac{2}{7}=360\)
\(y+y\times\frac{1}{3}\times\frac{9}{2}+y\times\frac{7}{2}=360\)
\(y+y\times\frac{3}{2}+y\times\frac{7}{2}=360\)
\(y\times\left(1+\frac{3}{2}+\frac{7}{2}\right)=360\)
\(y\times6=360\)
\(y=360:6\)
\(y=60\)
\(y+y.\frac{1}{3}:\frac{2}{9}+y:\frac{2}{7}=360\)
\(\Rightarrow y+y.\frac{1}{3}.\frac{9}{2}+y.\frac{7}{2}=360\)
\(\Rightarrow y+y.\frac{3}{2}+y.\frac{7}{2}=360\)
\(\Rightarrow y.\left(1+\frac{3}{2}+\frac{7}{2}\right)=360\)
\(\Rightarrow y.6=360\)
\(\Rightarrow y=360:6\)
\(\Rightarrow y=60\)
Vậy y = 60
_Chúc bạn học tốt_
\(y+yx\frac{1}{3}:\frac{2}{9}+y:\frac{2}{7}=360\)
\(yx1+yx\frac{1}{3}x\frac{9}{2}+yx\frac{7}{2}=360\)
\(yx1+yx\frac{3}{2}+yx\frac{7}{2}=360\)
\(yx\left(1+\frac{3}{2}+\frac{7}{2}\right)=360\)
\(yx6=360\)
\(y=360:6\)
\(y=60\)
