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không nói linh tinh nha thánh troll trả lời thì trả lời đi bị trừ điểm đó
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\(a)y-6:2-\left(48-24x2:6-3\right)=0\)\(0\)
\(y-3-\left(48-48:6-3\right)=0\)
\(y-3-\left(48-8-3\right)=0\)
\(y-3-\left(40-3\right)=0\)
\(y-3-37=0\)
\(y-\left(3+37\right)=0\)
\(y-40=0\)
\(y=0+40\)
\(y=40\)
\(b)\left(7x13+8x13\right):\left(9\frac{2}{3}-y\right)=39\)
\(\left(91+104\right):\left(\frac{29}{3}-y\right)=39\)
\(195:\left(\frac{29}{3}-y\right)=39\)
\(\frac{29}{3}-y=195:39\)
\(\frac{29}{3}-y=5\)
\(y=\frac{29}{3}-5\)
\(y=\frac{14}{3}\)
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\(1-\frac{y}{3}=\frac{1}{3}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{2}{6}+\frac{2}{6}\)
\(\Rightarrow1-\frac{y}{3}=\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=1-\frac{4}{6}\)
\(\Rightarrow\frac{y}{3}=\frac{2}{6}\)
\(\Rightarrow y=\frac{2.3}{6}\)
\(\Rightarrow y=1\)
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
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Tìm y:
a, 7-y:2=3
y:2=7-3
y:2=4
y=2.4
y=8
b,y/9=8/6
6.y=8.9
6.y=72
y=72:6
y=12
Điền đơn vị:
38m 8 dm=3,88 dam
5 m^2 7dm^2=0,0507 dam^2
a , 7 , 25 × y + 5 , 6 = 58 y + 5 , 6 = 58 : 7 , 25 y = 8 − 5 , 6 y = 2 , 4 b , 470 , 04 : y = 24 y = 470 , 04 : 24 y = 19 , 585