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\(a)y-6:2-\left(48-24x2:6-3\right)=0\)\(0\)
\(y-3-\left(48-48:6-3\right)=0\)
\(y-3-\left(48-8-3\right)=0\)
\(y-3-\left(40-3\right)=0\)
\(y-3-37=0\)
\(y-\left(3+37\right)=0\)
\(y-40=0\)
\(y=0+40\)
\(y=40\)
\(b)\left(7x13+8x13\right):\left(9\frac{2}{3}-y\right)=39\)
\(\left(91+104\right):\left(\frac{29}{3}-y\right)=39\)
\(195:\left(\frac{29}{3}-y\right)=39\)
\(\frac{29}{3}-y=195:39\)
\(\frac{29}{3}-y=5\)
\(y=\frac{29}{3}-5\)
\(y=\frac{14}{3}\)
\(1-\frac{y}{3}=\frac{1}{3}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{2}{6}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=1-\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=\frac{2}{6}\)
\(\Rightarrow y=\frac{2.3}{6}\)
\(\Rightarrow y=1\)
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
A ,96 - ( 37,5 : y ) = 94,5
37 .5 : y = 96 - 94.5
37 .5 : y = 1.5
y = 37.5 : 1.5
y = 25
CHUC BAN HOC TOT NHA !
a) y - 6 : 2 - (48 - 24 x 2 : 6 - 3) = 0
y - 3 - (48 - 48 : 6 - 3) = 0
y - 3 - (48 - 8 - 3) = 0
y - 3 - 37 = 0
y - ( 3+37) = 0
y - 40 =0
y =0+40
Y =40
b) ( 7x13 - 8x13) : ( 9 2/3 -y) =39
(7+8)x13 : (29/3 - y) =39
15 x 13 : (29/3-y) =39
195 : (29/3 - y) =39
29/3 - y =195 : 39
29/3 - y = 5
y = 29/3 - 5
y = 14/3