Question

Find the value of x:

Answer 1

Answer:

51

Step-by-step explanation:

78 + 2x = 180

2x = 180 - 78

2x = 102

x = 51

Answer 2

Answer:

x = 25.5

Step-by-step explanation:

2x + x + x + 78 = 180

4x + 78 = 180

4x = 102

x = 25.5