Respuesta :

mhanifa

Answer:

a + 3

Step-by-step explanation:

Solving in steps

  • (a - 9/a) ÷ (1 - 3/a) =                    ⇒ parenthesis to fraction
  • (a² - 9)/a ÷ (a - 3)/a =                  ⇒ revert deletion to multiplication
  • (a + 3)(a - 3)/a × a/(a - 3) =          ⇒ cancel same factors
  • a + 3                                            ⇒ answer