Respuesta :
[tex]10x + 80 = 180 \\ 10x = 180 - 80 = 100 \\ x = \frac{100}{10} = 10[/tex]
x is 10 degrees
good luck
Answer:
10 degrees
Step-by-step explanation:
a straight line is equal to 180 degrees and this shows 80 degrees then 10 and then you would do 180 minus 80=100 the you do 100 divided by 10 and you answer is 10