(25x4)x999999999=?
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Lời giải:
$(160\times 5-25\times 4):7-3\times x=36\times 25:9-60$
$(800-100):7-3\times x=(36:9)\times 25-60$
$700:7-3\times x=4\times 25-60$
$100-3\times x=100-60$
$100-3\times x=40$
$3\times x=100-40=60$
$x=60:3=20$
(160×5−25×4):7−3×x=36×25:9−60(160×5−25×4):7−3×�=36×25:9−60
(800−100):7−3×x=(36:9)×25−60(800−100):7−3×�=(36:9)×25−60
700:7−3×x=4×25−60700:7−3×�=4×25−60
100−3×x=100−60100−3×�=100−60
100−3×x=40100−3×�=40
3×x=100−40=603×�=100−40=60
x=60:3=20
![](https://rs.olm.vn/images/avt/0.png?1311)
(160*5-25*4):7-3xX=40
97xX=40
X=97:40
X=2.245
mong bạn đánh giá kq của mình ^^
( 160 \(\times\) 5 - 25 \(\times\) 4 ) \(\div\) 7 - 3 \(\times\) \(x\) = 36 \(\times\) 25 \(\div\) 9 - 60
( 800 -100) \(\div\) 7 - 3 \(\times\) \(x\) = 900 \(\div\) 9 - 60
700 \(\div\) 7 - 3 \(\times\) \(x\) = 100 -60
100 - 3 \(\times\) \(x\) = 40
3 \(\times\) \(x\) = 100 - 40
3 \(\times\) \(x\) = 60
\(x\) = 60 \(\div\) 3
\(x\) = 20
![](https://rs.olm.vn/images/avt/0.png?1311)
(25x4)x999999999
=100x999999999
=99999999900