Respuesta :

Answer:

x=4

Step-by-step explanation:

4x-3=x+9

4x-x-3=9

4x-x=9+3

3x=9+3

3x=12

3/3

12/3=4

x=4

Answer:

X=4

Step-by-step explanation:

4x-3=x+9

4x-3+3=x+9+3

4x=x+12

4x-x=x+12-x

3x=12

3x/3=12/3

x=4