Respuesta :

Answer:

Step-by-step explanation:

7x - 1 + 3x - 9 = 180

10x - 10 = 180

10x = 190

x = 19

7(19) - 1 = 133 - 1 = 132

3(19) - 9 = 57 - 9 = 46

Answer: 48

Step-by-step explanation:

Q&A Education