Question

please say these answer ​

Answer 1

Step-by-step explanation:

1)

$x = 40$

2)

$x = 90$

4)

$x + x + 100 = 180$

$2x = 80$

$x = 40$

5)

$x + x + 90 = 180$

$2x = 90$

$x = 45$

7)

$x + 120 = 180$

$x = 60$

8)

$2x = 110$

$x = 55$