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2/3xX-1/4:(11/2-3/4)=1/6
2/3xX:19/4=1/6
2/3xX=1/6x19/4
2/3xX=19/24
X=19/24:2/3
X=19/16
chắc luôn
![](https://rs.olm.vn/images/avt/0.png?1311)
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\(x\cdot3:x+2\cdot6:4+x:0,5+0,25+x\cdot1=35\)
=>\(3+3+2x+0,25+x=35\)
=>3x+6,25=35
=>3x=35-6,25=28,75
=>\(x=\dfrac{28.75}{3}=\dfrac{115}{12}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
= 0,75 x 0,25 + 0,75 x 1,25 - 0,75 x 0,5
= 0,75 x ( 0,25 + 1,25 - 0,5 )
= 0,75 x 1
= 0,75
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(0,75\times64-32\times2\times\frac{3}{4}\right):\left(0,25\times19\times2\times2017\right)\)
= \(\left[64\times\left(0,75-\frac{3}{4}\right)\right]:\left(0,25\times19\times2\times2017\right)\)
= \(\left(64\times0\right):\left(0,25\times19\times2\times2017\right)\)
= \(0:\left(0,25\times19\times2\times2017\right)\)
= \(0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
3/4 x X + 1/4=2/3
X+1/4= 2/3 - 3/4= -1/12
X= -1/12-1/4= -1/3
Đúng Cho mình nha
3/4xX+0.25=2/3
3/4xX =2/3-0,25
3/4xX =5/12
X =5/12:3/4
X [=5/9