suy nghĩ đi 

đề dễ quá

Bài 1 :

\(\frac{2087-x}{27}=2015\)

\(2087-x=2015.27\)

\(2087-x=54405\)

\(x=2087-54405\)

\(x=-52318\)

B2 :

45(463+x)=44955

463+x=44955:45

463+x=999

x=999-463

x=536

Bài 1 :

$\frac{2087-x}{27}=2015$2087−x27 =2015

$2087-x=2015.27$2087−x=2015.27

$2087-x=54405$2087−x=54405

$x=2087-54405$x=2087−54405

$x=-52318$x=−52318

B2 :

45(463+x)=44955

463+x=44955:45

463+x=999

x=999-463

x=536

Bài 1 :

$$

$$

$$

$$

$$

B2 :

45(463+x)=44955

463+x=44955:45

463+x=999

x=999-463

x=536

2087 - x : 27 = 2015

x : 27 = 2087 - 2015

x : 27 = 72

x = 72 x 27

x = 1944

45 x (463 + x) = 44955

463 + x = 44955 : 45

463 + x = 999

x = 999 - 463

x = 536

#hok tốt#

2087 - x :27 = 2015

x : 27 = 2087 - 2015

x : 27 = 72

x = 72 x 27

x = 1944

2087 - x : 27 = 2015

          x : 27 = 2087 - 2015

          x : 27 = 72

          x       =72 x 27

         x        =1944

 45 x ( 463 + x ) = 44955

          463 + x  = 44955 : 45

          463 + x = 999

                   x  = 999 - 463

                   x  = 536

2087-x:27=2015

        x:27=2087-2015

        x:27=72

        x    =72x27

        x    =1944

45x(463+x)=44955

       463+x=44955:45

       463+x=999

              x=999-463

              x=536

Ta có: 45 x (463 + x ) = 44955

463 + x = 44955 : 45

463 + x = 999

x = 999 - 463

x = 536

45 x (463+x)=44955

=) 44955 : 45 = 463 +x

=) 999 = 463 +x

= )x = 999 - 463

=) x = 536

45 x (463+x) = 44955

=>    463+x=999 (=44955:45)

=>           x=536 (=999-463)

Vậy x=536

       \(2087-x:27=2015\)

\(\Rightarrow\)               \(x:27=2087-2015\)

\(\Rightarrow\)               \(x:27=66\)

\(\Rightarrow\)                      \(x=66.27\)

\(\Rightarrow\)                      \(x=1782\)

Vậy \(x=1782\)

     \(2087-x:27=2015\)

\(\Rightarrow x:27=2087-2015\)\(\Rightarrow x:27=72\Rightarrow x:72=72.27\Rightarrow x=1944\)

2087-\(\frac{x}{27}\)=2015

\(\frac{x}{27}\)=2087-2015

\(\frac{x}{27}\)=72

x=72 . 27

x=1944

đề loại nào thế.

Kiểu 1 :\(2087-\frac{x}{27}=2015\)

Kiểu 2 : \(\frac{2087-x}{27}=2015\)

Kiểu 1 hay kiểu 2 vậy

Ta có: \(2087-\frac{x}{27}=2015\)

\(\Rightarrow\frac{x}{27}=2087-2015=72\)

\(\Rightarrow\frac{x}{27}=72\)

\(\Rightarrow x=27.72=1944\)

=>463+x=44955:45

=>463+x=999

=>x=999-463

=>x=536

dung quen nhe moi nguoi 

45 x (463+x) = 44955

=> 463 + x = 44955 : 45 

=> 463 + x = 999

=> x = 999 - 463 

=> x = 536

Nhìn thấy thì tiếc gì 1 Li.ke nhỉ ???

#Học tốt

=>463+x=44955:45

=>463+x=999

=>x=999-463

=>x=536