Respuesta :

Answer: -2

Step-by-step explanation:

convert it to a equation:

7x+8=5x+4

move x's to a side and numbers to the other

2x=-4

divide by 2

x=-2

Let us consider the number to be 'n'.

Given condition :

  • 7n + 8 = 5n + 4

Subtract '5n' from each side :

  • 7n + 8 - 5n = 5n + 4 - 5n
  • 2n + 8 = 4

Subtract '8' from each side :

  • 2n + 8 - 8 = 4 - 8
  • 2n = -4

Divide '2' from each side :

  • 2n/2 = -4/2
  • [tex]\fbox {n = -2}[/tex]

∴ The number is -2.