Question

Cho mk hỏi

780 - ( x - 45 ) : 2 = 120

hãy tìm x

Answer 1

\(780-\left(x-45\right):2=120\)

\(\Rightarrow\left(x-45\right):2=780-120\)

\(\Rightarrow\left(x-45\right):2=660\)

\(\Rightarrow x-45=660\times2\)

\(\Rightarrow x-45=1320\)

\(\Rightarrow x=1320+45\)

\(\Rightarrow x=1365\)

Vậy x = 1365

_Chúc bạn học tốt_

Answer 2

780 - (x - 45) : 2 = 120

=> (x - 45) : 2 = 780 - 120

=> (x - 45) : 2 = 660

=> x - 45 = 660 x 2

=> x - 45 = 1320

=> x = 1320 + 45

=> x = 1365

vậy_

Answer 3

\(780-\left(x-45\right):2=120\)

               \(\left(x-45\right):2=780-120\)

                    \(\left(x-45\right):2=660\)

                     \(x-45=660.2\)

                    \(x-45=1320\)

                    \(x=1320+45\)

                    \(x=1365\)

                     

Answer 4

780 - (x-45) : 2 = 120

( x - 45) : 2 = 780 - 120

(x-45) : 2 = 660

x - 45 = 1320

x = 1365

Answer 5

780 - ( x - 45 ) : 2 = 120

780 - ( x - 45 ) = 120 x 2

780 - ( x - 45 ) = 240

x - 45 = 780 - 240

x - 45 = 540

x = 540 + 45

x = 585

Answer 6

\(x=1365\)

Answer 7

780 - ( x - 45 ) : 2 = 120

( x - 45 ) : 2 = 780 - 120

( x - 45 ) : 2 = 660

x - 45 = 660 . 2 

x - 45 = 1320

x = 1320 + 45

x = 1365 

Vậy x = 1365