Answer:
Please refer to the attachment
Step-by-step explanation:
is the required answer
cuatro terminos
n = -7
49 = -5n - 2n
combine like terms
-5 - 2 = -7
49 = -7n
divide both sides by -7
49/-7 = -7n/-7
49/-7 = n
49/-7 = -7
-7 = n
