Respuesta :

Answer:

x + x = 4.5 or x = 2.25 is the answer or the value of x.

Step-by-step explanation:

4x + -3 -9 +4x=6​

4x + 3 + 9 + 4x=6 + 3 + 9

4x + 4x = 18

4x/4 + 4x/4 = 18/4

x + x = 4.5

x = 2.25