Respuesta :

   9a - c   Replace a with -7 and c with 6
9(-7) - 6   Multiply 9 by -7
  -63 - 6   Subtract
      -69

Hey there!


9a - c

= 9(-7) - 6

= -63 - 6

= -69


Therefore, your answer is; -69


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)