Question

5(7-×)=31-×

con procedimiento xd​

Answer 1

5 ( 7 - x ) = 31 - x

35 -5x = 31-x

-5x + x= 31 - 35

-4x =- 4

x =1

5(7-1)=30

31-1=30

30=30

Answer 2

Hola! :)

Resolvemos:

5(7 - x) = 31 - x

35 - 5x = 31 - x

35 = 31 - x + 5x

35 = 31 + 4x

35 - 31 = 4x

4 = 4x

x = 1   ➜  Respuesta

Comprobación:

5(7 - x) = 31 - x

5x (7 - 1) = 31 - 1

5x 6 = 31 - 1

30 = 31 - 1

30 = 30 ➜ Comprobado ✔️

Saludos✌