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Xx125+Xx876-X=12000
Xx125+Xx876-Xx1=12000
Xx(125+876-1)=12000
Xx(1001-1)=12000
Xx1000=12000
X =12000:1000
X=12
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thank you bạn
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Xx125+Xx876-X=12000
Xx125+Xx876-Xx1=12000
Xx(125+876-1)=12000
Xx(1001-1)=12000
Xx1000=12000
X =12000:1000
X=12
k cho mình nha!
\(125x+876x-x=12000\)
\(\Leftrightarrow125x+876x-1x=12000\)
\(\Leftrightarrow x\left(125+876-1\right)=12000\)
\(\Leftrightarrow1000x=12000\)
\(\Leftrightarrow x=12000\div1000\)
\(\Leftrightarrow x=12\)
\(\text{Vậy }x=12\)
![](https://rs.olm.vn/images/avt/0.png?1311)
4057+(X:38) = 20395
X:38 = 20395-4057
X:38= 16338
X=16338 x 38
X= 620844
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Ta có: X x 456 + X x 544 + X = 12000
X x ( 456 + 544 + 1) = 12000
X x 1001 = 12000
X = 12000/1001
\(X\cdot456+X\cdot544+X=12000\)
\(X\cdot\left(456+544+1\right)=12000\)
\(X\cdot1001=12000\)
\(X=\frac{12000}{1001}\)
\(X=11\frac{989}{1001}\)
\(\cdot\)\(Là\)x (nhân) nha
=>1000x=12000
hay x=12
x×125 + x×876 - x=12000
x × (125 + 876 - 1)=12000
x × 1000=12000
x=12000 : 1000
x=12
Vậy x=12