Question

Tìm X nha

A.12:(x+4)=2

B.12:(x+4)×3+18=24

Lưu ý : dấu : là chia

Answer 1

\(A.12:\left(x+4\right)=2\)

\(\Rightarrow x+4=12:2\)

\(\Rightarrow x+4=6\)

\(\Rightarrow x=2\)

\(B,12:\left(x+4\right).3+18=24\)

\(12:\left(x+4\right).3=6\)

\(\Rightarrow12:\left(x+4\right)=2\)

\(\Rightarrow x+4=6\)

\(\Rightarrow x=2\)

Answer 2

a) 12 : ( x + 4 ) = 2

x + 4 = 12 : 2

x + 4 = 6

x = 6 - 4 

x = 2

Vậy x = 2

b) 12 : ( x + 4 ) . 3 + 18 = 24

12 : ( x + 4) . 3 = 24 - 18

12 : ( x + 4 ) . 3 = 6

12 : ( x + 4 ) = 6 : 3

12 : ( x + 4 ) = 2

x + 4 = 12 : 2 

x + 4 = 6

x = 6 - 4

x = 2

Vậy x = 2

Học tốt !!!

=))

Answer 3

\(12:\left(x+4\right)=2\)

\(x+4=12:2=6\)

\(\Rightarrow x=6-4=2\)

Vậy \(x=2\)