Respuesta :

apologiabiology
x is the number

5 times of it is 5x

it's equal to the number increased by 12 or 12+x


remember, you  can do anything to an equation as long as you do it to both sides

5x=12+x
minus x from both sides
4x=12
divie both sides by 4
x=3

the number is 3
abidemiokin

The required expression is [tex]5n = n+ 12[/tex] and the unknown number is [tex]3[/tex]

Let the unknown number be "n"

  • Five times the number is expressed as 5n

  • The number increased by 12 is expressed as n + 12

Equating both expressions will give:

[tex]5n = n + 12[/tex]

Solve for n:

[tex]5n - n = 12\\4n = 12\\n = 12/4\\n = 3[/tex]

Hence the required expression is [tex]5n = n+ 12[/tex] and the unknown number is [tex]3[/tex]

Learn more here: https://brainly.com/question/13805464