Answer:

Step-by-step explanation:
Divide both sides by 

Simplify:
; 
Answer:
I been trying to look for that answer for so long but can we help each other at least
A line is 180°, so the supplementary angel makes up the difference between. 180 - 60 = 120°
Answer:
Step-by-step explanation:
29 5x+8+x+4=90
6x=78
x=13
30 3x-7+11x-1=90
14x=98
x=7
31 3x+x+8=180
4x=172
x=43
32 6x-1+5x-17=180
11x=198
x=18
Answer:
B
Step-by-step explanation:
Because