+0  
 
0
45
3
avatar

Solve for x.

 

 Mar 5, 2021
 #1
avatar+235 
+1

15x+5+60+22x+4=180

37x+69 = 180

37x = 111

x=3

 Mar 5, 2021
 #2
avatar+483 
+2

Angle ∠CDB is just 180 - 120 = 60 degrees. 
Since the total degree of the angles in a triangle are 180o, we can write an equation:

60 + (22x + 4) + (15x + 5) = 180
60 + 4 + 5 + 22x + 15x = 180
69 + 37x = 180

37x = 111

x = 3

 Mar 5, 2021
 #3
avatar
0

15x + 5 + 22x + 4 = 120

37x = 111

x = 3 smiley

 Mar 6, 2021

14 Online Users

avatar