Respuesta :
Answer:
A. 1
Step-by-step explanation:
5x + 48 + 7x = 12(x + 4)
12x + 48 = 12x + 48
x = 1
A. 1
Step-by-step explanation:
5x + 48 + 7x = 12(x + 4)
12x + 48 = 12x + 48
x = 1
It is b. The other answer is wrong. You can test it out by putting in different values for x.