Which of the following equations can be used to find the missing angle, x, in the triangle below?

Answer:
x+84=180
Step-by-step explanation:
a triangle has a total angle degrees of 180
Answer:
x + 84 = 180
Step-by-step explanation:
The sum of all the interior angles of a triangle is 180. So basically, x plus the other two angles would have to equal 180.