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125 \(\times\) y - 12 \(\times\)y - 13 \(\times\) y = 5208000
y \(\times\)( 125 - 12 - 13) = 5208000
y \(\times\) 100 = 52008000
y = 5208000 : 100
y = 52080
![](https://rs.olm.vn/images/avt/0.png?1311)
125 \(\times\) y - 12 \(\times\) y - 13 \(\times\) y = 5208000
y \(\times\) ( 125 - 12 - 13) = 5208000
y \(\times\) 100 = 5 208 000
y = 5 208 000 : 100
y = 52 080
![](https://rs.olm.vn/images/avt/0.png?1311)
125.y-12.y-13.y=5208000
(125-12-13).y=5208000
100.y=5208000
y=5208000:100
y=52080
![](https://rs.olm.vn/images/avt/0.png?1311)
128 x y - 12 x y - 16 x y = 5208000
(128 - 12 - 16) x y = 5208000
100 x y = 5208000
y = 5208000 : 100
y = 520800
![](https://rs.olm.vn/images/avt/0.png?1311)
yx12+yx13-y=4872
yx(12+13-1)=4872
yx24=4872
y=4872:24
y=203
vay y=203
![](https://rs.olm.vn/images/avt/0.png?1311)
`1716:y=12xx13`
`1716:y=156`
`y=1716:156`
`y=11`
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`y xx 2/3+y xx 1/6=10/3`
`y xx(2/3+1/6)=10/3`
`y xx(4/6+1/6)=10/3`
`y xx5/6=10/3`
`y=10/3:5/6`
`y=10/3xx6/5=4`
1716 : y = 12 \(\times\) 13
1716 : y = 156
y = 1716 : 156
y = 11
\(y\times\dfrac{2}{3}+y\times\dfrac{1}{6}=\dfrac{10}{3}\)
\(y\times\left(\dfrac{2}{3}+\dfrac{1}{6}\right)=\dfrac{10}{3}\)
\(y\times\dfrac{5}{6}=\dfrac{10}{3}\)
\(y=\dfrac{10}{3}:\dfrac{5}{6}\)
\(y=4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)\(\Leftrightarrow\)\(x(27+30+43)=210500\)
\(\Leftrightarrow\)\(100x=210500\)
\(\Leftrightarrow\)\(x=2105\)
b)\(\Leftrightarrow\)\(x(128-12-16)=5208000\)
\(\Leftrightarrow\)\(100x=5208000\)
\(\Leftrightarrow\)\(x=52080\)
\(x\times27+x\times30+x\times43=210500\)
\(\Leftrightarrow x\times\left(27+30+43\right)=210500\)
\(\Leftrightarrow x\times100=210500\)
\(\Leftrightarrow x=2105\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
X x 27 + X x 30 +X x 43=210500
X x ( 27 + 30 + 43) =210500
X x 100 =210500
X =210500 : 100
X =2105
128 x X - 12 x X -16 x X=5208000
( 128 - 12 - 16 ) x X =5208000
100 x X =5208000
X =5208000 : 100
X =52080
- Nhớ tick cho mình nha
125 x y - 12 x y -13 x y = 5208000
=> y x (125 - 12 - 13) = 5208000
=> y x 100 = 5208000
=> y = 5208000 : 100
=> y = 52080
Vậy y = 52080