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\(y+1\frac{21}{22}=2\frac{43}{44}\Rightarrow y+\frac{43}{22}=\frac{131}{44}\Rightarrow y=\frac{131}{44}-\frac{86}{44}\Rightarrow y=\frac{45}{44}\)
\(y+1\frac{21}{22}=2\frac{43}{44}\)
\(y+\frac{43}{22}=\frac{131}{44}\)
y \(=\)\(\frac{131}{44}-\frac{43}{22}=\frac{45}{44}\)

(\(\frac{5}{7}-y\)) x \(\frac{14}{5}=\frac{6}{5}\)
\(\frac{5}{7}-y\) = \(\frac{6}{5}:\frac{14}{5}\)
\(\frac{5}{7}-y\) = \(\frac{3}{7}\)
y = \(\frac{5}{7}-\frac{3}{7}\)
y = \(\frac{2}{7}\)
\(\left(\frac{5}{7}-y\right)\cdot\frac{14}{5}=\frac{7}{10}+\frac{1}{2}\)
\(\Leftrightarrow\left(\frac{5}{7}-y\right)\cdot\frac{14}{5}=\frac{7}{10}+\frac{5}{10}\)
\(\Leftrightarrow\left(\frac{5}{7}-y\right)\cdot\frac{14}{5}=\frac{6}{5}\)
\(\Leftrightarrow\frac{5}{7}-y=\frac{6}{5}\div\frac{14}{5}\)
\(\Leftrightarrow\frac{5}{7}-y=\frac{3}{7}\)
\(\Rightarrow y=\frac{5}{7}-\frac{3}{7}=\frac{2}{7}\)

\(1-\frac{y}{3}=\frac{1}{3}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{2}{6}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=1-\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=\frac{2}{6}\)
\(\Rightarrow y=\frac{2.3}{6}\)
\(\Rightarrow y=1\)
a)1-\(\frac{y}{3}\)=2/3
y/3 =1-2/3
y/3 =1/3
\(\Rightarrow\)y=1
Vậy y=1
b)100/y-24/18=1/18
100/y =1/18+24/18
100/y=25/18
100/y=100/72
\(\Rightarrow\)y=72
Vậy y=72
C)14/27.y=36/12:18/14
14/27.y=3:9/7
14/27.y=7/3
y =7/3:14/27
y =9/2
k cho mk đi

\(\left(\frac{5}{7}-y\right)x\frac{14}{5}=\frac{7}{10}+\frac{1}{2}\)
\(\left(\frac{5}{7}-y\right)x\frac{14}{5}=\frac{6}{5}\)
\(\frac{5}{7}-y=\frac{6}{5}:\frac{14}{5}\)
\(\frac{5}{7}-y=\frac{3}{7}\)
Y = \(\frac{5}{7}-\frac{3}{7}\)
Y = \(\frac{2}{7}\)
\(\left(\frac{5}{7}-y\right).\frac{14}{5}=\frac{7}{10}+\frac{1}{2}\)
\(\left(\frac{5}{7}-y\right).\frac{14}{5}=\frac{6}{5}\)
\(\frac{5}{7}-y=\frac{6}{5}\div\frac{14}{5}\)
\(\frac{5}{7}-y=\frac{3}{7}\)
\(y=\frac{5}{7}-\frac{3}{7}\)
\(y=\frac{2}{7}\)

\(y\times3+\frac{y}{2}+\frac{y}{4}=1\frac{1}{2}\)
\(\Leftrightarrow y\times3+\frac{y}{2}+\frac{y}{4}=\frac{3}{2}\)
\(\Leftrightarrow12y+2y+y=6\)
\(\Leftrightarrow15y=6\)
\(\Leftrightarrow y=\frac{2}{5}\)
.......Đúng thì ủng hộ ......
Kết bạn với mình nha ;) ;)


\(196:\left(\dfrac{2+44+y}{y}\right)=14\)
=>\(\dfrac{y+46}{y}=14\)
=>14y=46+y
=>13y=46
=>\(y=\dfrac{46}{13}\)
`196 : (2 + 44 + y)/y = 14`
`=> (46 + y)/y = 196 : 14`
`=>(46 + y)/y= 14`
`=> 46/y + y/y = 14`
`=> 46/y + 1 = 14`
`=> 46/y = 14 -1`
`=> 46/y = 13`
`=> y = 46/13`
Vậy `y = 46/13`