Răspuns :
a=2b
b=2c
a=c+135
a=2b=>2x2c=4c
4c=c+135=>4c-c=135=>3c=135
c=135:3=45
b=2x45=90
a=2x90=180
Sper că te am ajutat
a:b = 2, a = 2b, a = 2*2c = 4c
b:c = 2, b = 2c
a-c = 135
4c-c = 135
3c = 135
c = 135:3
c = 45
a = 4c = 4*45 = 180
b = 2c = 2*45 = 90
b:c = 2, b = 2c
a-c = 135
4c-c = 135
3c = 135
c = 135:3
c = 45
a = 4c = 4*45 = 180
b = 2c = 2*45 = 90