Respuesta :

Answer:

3x+12=36

x=8

Step-by-step explanation:

3x+12=36

3x=36-12

3x=24

x=24/3

x=8

Answer:

8

Step-by-step explanation:

3x + 12 = 36

      -12   -12

3x=24

3x/3=x and 24/3=8

x=8