Question

Find x in the both figure

Answer 1

1. 3x-5 + 55 + 2x+5 = 180. linear pair
5x+55=180
x+11=36
x= 25
2. x+2x+3x+4x=360 complete angle
10x=360
x= 36

Answer 2

$3x - 5 + 55 + 2x + 5 = 180 \\ 5x + 55 = 180 \\ 5x = 180 - 55 \\ 5x = 125 \\ x = 125 \div 5 \\ x = 25$