If you would like to find the value of x, you can do this using the following steps:
5x/6 + 1/3 = 7/12 /*6
5x + 2 = 7/2
5x = 7/2 - 2
5x = 7/2 - 4/2
5x = 3/2 /5
x = 3/2 / 5/1 = 3/2 * 1/5 = 3/10
The correct result would be: x = 3/10.
Answer:
The sum of interior angles of a regular shape is found by doing no. of sides - 2 and times this by 180
8-2 =6
6x 180= 1080
then divide by 8 to find each angle
1080/8 = 135