Respuesta :

Answer:

Step-by-step explanation:

3x - 7 + 90 + x + 8 = 180

4x + 91 = 180

4x = 89

x = 22.25

3(22.25) - 7 = 59.75 for 3x - 7

22.25+8= 30.25 for x + 8