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a x * 4 + [1/2 + 1/4 + 1/8 + 1/6] = 23/16
x * 4 + 25/24 = 23/16
x * 4 = 23/16 - 25/24
x * 4 = 38/96 = 19/48
x = 19/48 / 4
x = 19/172
b x * 1 = 425
x = 425 / 1
x = 425
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X - 6/5 = 4
X = 4 + 6/5
X= 26/5
X x 4/5 = 23/20
X = 23/20 : 4/5
X = 23/16
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\(\Leftrightarrow\dfrac{6}{16}\cdot2< x< \dfrac{20}{21}\cdot\dfrac{21}{4}=5\)
=>3/4<x<5
hay \(x\in\left\{1;2;3;4\right\}\)
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6/x = 4/6 ; 6/x giữ nguyên 4/6 = 2/3 = 6/9 => x= 9
x/72 = 10/16 ; 10/16 = 5/8 = 45/72 => x = 45
x + 1/6 = 2/3 x = 2/3 - 1/6 = 1/2 => x = 1/2
x - 2/12 = 3/4 x = 3/4 + 2/12 = 11/12
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a: =>x-5/14=6/14-1/14=5/14
=>x=10/14=5/7
b; =>2/9:x=3/6+4/6=7/6
=>x=2/9:7/6=2/9*6/7=4/21
c: =>32:x=8
=>x=4
`@` `\text {Answer}`
`\downarrow`
`a,`
`x - 5/14 = 3/7 - 1/14`
`x - 5/14 = 5/14`
`=> x = 5/14 + 5/14`
`=> x = 5/7`
Vậy, `x = 5/7`
`b,`
`2/9 \div x = 1/2 + 2/3`
`2/9 \div x = 7/6`
`x = 2/9 \div 7/6`
`x = 4/21`
Vậy, `x = 4/21`
`c,`
\(\dfrac{6}{32\div x}=\dfrac{12}{16}\)
`6/(32 \div x) = 3/4`
`32 \div x = 6 \div 3/4`
`32 \div x = 8`
` x = 32 \div 8`
`x = 4`
Vậy, `x = 4`
Ta có : 6x = 16x
<=> 6x + 0 = 6x + 10x
=> 10x = 0
=> x = 0
Vậy x = 0
kết quả chính xác là
x=0
đáp số ......