Respuesta :
Answer:
A: -4
Step-by-step explanation:
Expand first, "-5 x 3n = -15n" , "-5 x 4 = -20"
Then you have "-15n - 20 = 40"
Transfer the -20 to the RHS,
Then you have "-15n = 60"
Divide both sides by -15
n = -4
Answer:
A: -4
Step-by-step explanation:
Expand first, "-5 x 3n = -15n" , "-5 x 4 = -20"
Then you have "-15n - 20 = 40"
Transfer the -20 to the RHS,
Then you have "-15n = 60"
Divide both sides by -15
n = -4