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\(a,\frac{6}{8}=\frac{15}{y}\)
\(\Leftrightarrow6\times y=15\times8\)
\(\Leftrightarrow6\times y=120\Leftrightarrow y=20\)
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#)Giải :
11 x ( y - 6 ) = ( 4 x y ) + 11
11 x y - 66 = 44 x y + 11
y x ( 11 + 11 ) = 66 + 44
y x 22 = 110
y = 110 : 22
y = 5
#) Coi như là làm lại đi ha :D
#~Will~be~Pens~#
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Mình thay dấu "x" thành "." cho đỡ bị nhầm nha
11.(y-6)=(y-4)+1
\(\Rightarrow\)11.y-11.6=y-4+1
\(\Rightarrow\)11.y-66=y-3
\(\Rightarrow\)11.y-y=-3+66
\(\Rightarrow\)10.y=63
\(\Rightarrow\)y=6,3
Vậy y=6,3
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Son Go Ten
11 x ﴾ y ‐ 6 ﴿ = ﴾ 4 x y ﴿ + 11
11 x y ‐ 66 = 44 + y x 11
y x ﴾ 11 + 11 ﴿ = 66 + 44
y x 22 = 110
y = 110 : 22
y = 5
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\(y\times\dfrac{6}{11}+y\times\dfrac{5}{11}=2025\)
\(y\times\left(\dfrac{5}{11}+\dfrac{6}{11}\right)=2025\)
\(y\times1=2025\)
\(y=2025\)
\(y.\dfrac{6}{11}+y.\dfrac{5}{11}=2025\)
\(y.\left(\dfrac{6}{11}+\dfrac{5}{11}\right)=2025\)
\(y.\left(\dfrac{11}{11}\right)=2025\)
\(y=2025\)
Dấu . là dấu nhân
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\(y-3\frac{3}{4}=1\frac{1}{6}\)
=> \(y-\frac{15}{4}=\frac{7}{6}\)
=> \(y=\frac{7}{6}+\frac{15}{4}\)
=> \(y=\frac{14}{12}+\frac{45}{12}\)
=> \(y=\frac{59}{12}\)
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Bạn Toàn Nguyễn ơi bạn có thể làm hẳn ra giúp mình không ?
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11/3+11/5.y-4/5=24/5
88/15.y=24/5-4/5
88/15.y=20/5
88/15.y=4
y=4:88/15
y=15/22
11/3 + 11/5 x y - 4/5 = 24/5
11/3 + 11/5 x y = 24/5 + 4/5
11/3 + 11/5 x y = 28/5
11/5 x y = 28/5 - 11/3
11/5 x y = 29/15
y = 29/15 : 11/5
y = 29/33