Respuesta :
To solve this, you have to use order of operations. First you multiply then add.
3 + 3 × 3 + 3 =
3 + (3 × 3) + 3 =
3 + 9 + 3 =
15
3 + 3 × 3 + 3 =
3 + (3 × 3) + 3 =
3 + 9 + 3 =
15