Question

x + 18 : 3² =5.4² 

Answer 1

x + 18 : 3² =5.4² 

x + 18 : 9 = 80

x + 2 = 80

x = 80 - 2

x = 78

\(\text{vậy x bằng 78 đúng rồi đó}\)

Answer 2

\(x+18:3^2=5.4^2\)

\(\Rightarrow x+18:9=80\)

\(\Rightarrow x+2=80\)

\(\Rightarrow x=80-2=78\)

Vậy x = 78

Answer 3

\(x=78\) nha bn

k mk nha

mk k lại cho!

Answer 4

x + 18 : 3²= 5.4² 
x + 18 : 9 = 5.16 
x + 18 : 9 = 80
x +    2     = 80
x              = 80 - 2
x              =   78

K NHA

Answer 5

x+18:9=5.16

Answer 6

<=>x+18:9=5.16

<=>x+2=80

<=>x=78

Answer 7

\(x+18:3^2=5.4^2\)

\(x+18:3^2=80\)

x+18:9=80

x+2=80

x=80-2

x=78