=>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

=>1000x=12000

hay x=12

χ x (125+873-1)=12000

χ  x 1000=12000

x=12000:1000

x=12

\(y\times125+y\times876-y=12000\)

\(=>y\times\left(125+876-1\right)=12000\)

\(=>y\times1000=12000\)

\(=>y=12000:1000\)

\(=>y=12\)

\(#Wendy.Dang\)

cảm ơn nha

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!

\(125x+876x-x=12000\)

\(\Leftrightarrow125x+876x-1x=12000\)

\(\Leftrightarrow x\left(125+876-1\right)=12000\)

\(\Leftrightarrow1000x=12000\)

\(\Leftrightarrow x=12000\div1000\)

\(\Leftrightarrow x=12\)

\(\text{Vậy }x=12\)

Xx125+Xx876-X=12000 
Xx125+Xx876-Xx1=12000 
Xx(125+876-1)=12000 
Xx(1001-1)=12000 
Xx1000=12000 
X =12000:1000 
X=12

tk nha bạn

thank you bạn

(^_^)

X x (125+876-1) = 12000

X x 1000            = 12000

X                        = 12000 : 1000

X                        = 12

4057+(X:38) = 20395

             X:38 = 20395-4057 

             X:38= 16338

                  X=16338 x 38

                  X= 620844

12 x 125 x 24 x 50

= (12 x 50) x (125 x 24)

= 600 x 3000

= 1800000.

(Tíck cho mình với nhé!)

12x125x24x50

=1500x24x50

=36000x50

=1800000

Bài 1:

a) x.x.y.y.x.y.x = \(x^4.y^3\)

b) 1000.10.10= 1000. \(10^2\)

c) \(3^{15}:3^5=3^{15-5}=3^{10}\)

d) \(9^8:3=3^{16}:3=3^{15}\)

e) \(125:5^3=\dfrac{125}{5^3}=\dfrac{5^3}{5^3}=1\)

B2:

12000 x 2 = 24000

36000 : 6 = 6000