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a) \(x+\frac{3}{5}=\frac{7}{2}\)
\(x=\frac{7}{2}-\frac{3}{5}=\frac{29}{10}\)
b) \(x-\frac{1}{4}=\frac{1}{5}\)
\(x=\frac{1}{5}+\frac{1}{4}=\frac{9}{20}\)
c) \(2-x=\frac{4}{7}\)
\(-x=2-\frac{4}{7}=\frac{10}{7}\Rightarrow x=-\frac{10}{7}\)
(k cho tớ với nhá!)
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a: x=1-2/9=7/9
b: x=6/7-2/3=18/21-14/21=4/21
c: x=1/4+1/2=3/4
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a)x : 2/5 = 3/7
= \(\dfrac{3}{7}x\dfrac{2}{5}=\dfrac{6}{35}\)
b) 6/5 - x = 7/8
\(x=\dfrac{6}{5}-\dfrac{7}{8}\)
\(x=\dfrac{13}{40}\)
a) x : 2/5 = 3/7
x = 3/7 x 2/5
x = 6/35
b) 6/5 - x = 7/8
x = 6/5 - 7/8
x = 13/40
#Tick cho mik nha
# học tốt :3
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a)
`7/12+x=3/2`
`=>x=3/2-7/12`
`=>x=18/12-7/12`
`=>x=11/12`
b)
`1/7:x=1/3`
`=>x=1/7:1/3`
`=>x=1/7xx3`
`=>x=3/7`
a)7/12+x=3/2
X=3/2-7/12
X=11/12
B)1/7:x=1/3
X=1/7:1/3
X=3/7
![](https://rs.olm.vn/images/avt/0.png?1311)
a)
`7/12+x=3/2`
`=>x=3/2-7/12`
`=>x=18/12-7/12`
`=>x=11/12`
b)
`1/7:x=1/3`
`=>x=1/7:1/3`
`=>x=1/7xx3`
`=>x=3/7`