Question

[thu trang]

 tìm x biết : 

a , ( x + 74 ) -318 =200

b , 3636 : ( 12x - 91 ) = 36

c , ( x : 23 + 45 ) . 67 = 8911

Answer 1

[lê văn hải]

\(a,\left(x+74\right)-318=200\)

\(\left(x+74\right)=200+318\)

\(\left(x+74\right)=518\)

\(x=518-74\)

\(x=444\)

\(b,3636:\left(12x-91\right)=36\)

\(\left(12x-91\right)=3636:36\)

\(\left(12x-91\right)=101\)

\(12x=101+91\)

\(12x=192\)

\(x=192:12\)

\(x=16\)

\(\left(x:23+45\right).67=8911\)

\(\left(x:23+45\right)=8911:67\)

\(\left(x:23+45\right)=133\)

\(x:23=133-45\)

\(x:23=88\)

\(x=88.23\)

\(x=2024\)

Answer 2

[Diệp Băng Dao]

Mk ko ghi lại đề mà làm tiếp luôn nha!

a)  (ĐỀ)

x+74=200+318

x+74=518

x      =518-74

x      =444

b) (ĐỀ)

12x-91=3636:36

12x-91=101

12x     =101+91

12x     = 192

    x     = 192:12

    x     = 16

c)  (ĐỀ)

x:23+45=8911:67

x:23+45= 133

x:23      =133-45

x:23      = 88

x           = 88.23

x           = 2024

K cho  mk nha bn!