Answer:
A; x= 8
B; x= -5
C; x= -12
Step-by-step explanation:
a => (7x-1)+(15x+5) = 180
22x +4 = 180
22x = 176
x= 8
b=> (x+135)= 130
x= -5
c=> x+60=48
x= -12
