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\(x-67421=5678\)
\(x=5678+67421\)
\(x=73099\)
\(x-\left(562+236\right)x5=569\)
\(x-798=569:5\)
\(x-798=113,8\)
\(x=113,8+798\)
\(x=911,8\)
\(x-231x3=263\)
\(x-693=263\)
\(x=263+693\)
\(x=956\)
\(x-560:4=426x9\)
\(x-140=3834\)
\(x=3834+140\)
\(x=3974\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1405+6543+5687+55555
(1405+55555)+(6543+5687)
56960 + 12230
69190
của bạn nè
Giải
1405+6543+5687+55555
= ( 1405 + 55555 ) + ( 6543 + 5687 )
= 56960 + 12230
= 69190
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a (X:10)+37=60
X:10=23
X=2,3
b 25xX-15xX=72
X(x25-15)=72
Xx10=72
X=7,2
c 138-(Xx5)=38
Xx5=100
X=20
d (Xx9):52=18
Xx9=936
X=104
e 52xX+48xX=100
Xx(52+48)=100
Xx100=100
X=1
f 623xX-123xX=1000
Xx(623-123)=1000
Xx500=1000
X=2
g Xx16+84xX=700
Xx(16+84)=700
Xx100=700
X=7
h 236xX-Xx36=2000
Xx(236-26)=2000
Xx200=2000
X=10
i 216:X+34:X=10
(216+34):X=10
250:X=10
X=25
f 2125:X-125:X=100
(2125-125):X=100
2000:X=100
X=20
![](https://rs.olm.vn/images/avt/0.png?1311)
the only
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![](https://rs.olm.vn/images/avt/0.png?1311)
b. \(\dfrac{4.2.3.5.2.6.2.5.3}{4.3.4.5.6.4.5.6}=\dfrac{1}{4}\)
c. \(\dfrac{17.2.101.2005}{17.2.101.2.2005}=\dfrac{1}{2}\)
d. \(\dfrac{2.3.4.2.11.13.17}{3.11.4.4.17.13.2}=\dfrac{1}{2}\)
a)\(\dfrac{4\times6\times10\times12\times15}{4\times12\times5\times24\times30}=\dfrac{2}{2\times2\times2}=\dfrac{2}{8}=\dfrac{1}{4}\)
b)\(\dfrac{34\times101\times2005}{17\times202\times4010}=\dfrac{2}{2\times2}=\dfrac{2}{4}=\dfrac{1}{2}\)
c)\(\dfrac{6\times8\times11\times13\times17}{33\times16\times17\times26}=\dfrac{6}{3\times2\times2}=\dfrac{1}{2}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 75*x=1800
x=1800:75
x=24
b) 1855:x=35
x=1855:35
x=53
c)x+x*2+6*x=81
1*x+x*2+6*x=81
x*(1+2+6)=81
x*9=81
x=81:9
x=9
d)155*x-x*146=72
x*(155-146)=72
x*9=72
x=72:9
x=8
*) Ta có:
75 × x = 1800
x = 1800 : 75
x = 24
*) Ta có:
1855 : x = 35
x = 1855 : 35
x = 53
73099
đúng ko
k mk nhé
~Mio~
\(x-67421=5687\)
\(x=5687+67421\)
\(x=73108\)