Respuesta :

Hello there!

Simply place it into an equation:
([tex]x[/tex] x 5) + 7 = 9
Then you solve:
9 - 7 = 2.
2/4 = 0.4.
x = 0.4
Check it:
0.4 x 5 = 2, 2 + 7 = 9.

In short, [tex]x[/tex] = 0.4.

Hope This Helps You!
Good Luck :)