Respuesta :

Answer:

31 +6u

Step-by-step explanation:

10 + 3(7 + 2u)

Distribute

10 +3*7+3*2u

10 +21 +6u

Combine like terms

31 +6u

Answer:

31 + 6u

Step-by-step explanation:

Step 1:  Distribute

10 + 3(7 + 2u)

10 + (3 * 7) + (3 * 2u)

10 + 21 + 6u

Step 2:  Combine like terms

10 + 21 + 6u

31 + 6u

Answer:  31 + 6u