Which expression is equivalent to (7s - 2t) – (3s - 4st + 7t)?

A. 4s – 4st + 5t

B. 4s + 4st + 5t

C. 4s – 4st – 9t

D. 4s + 4st – 9t

Respuesta :

Answer:

A

Step-by-step explanation:

7s-3s-2t+7t-4st

4s+5-4st