Respuesta :

Step-by-step explanation:

Step 1: 5x - 3 + 3 = 12 + 3

Step two: 5x = 15

Step three: 5x/5 = 15/5

Step four: x = 3

Answer:

step one- 5x-3+3=12+3

step two- 5x=15

step three- 5x/5=15/5

step four- x=3