Question

a+b+c=360
b=a×2
c=a+b+60
Sa se afle nr

Answer 1

a+b+c=360
b=a x 2
c= a+b+60 => c=a + a x 2 +60

Scriem toate nr in functie de 'a'

a+ a x 2 +a+ a x 2 +60 =360

Avem 4 a .
4a x 2 x 2=360
4a x 4 =360
4a = 90
a= 90:4
a= 22,5 => b= a x 2 => b= 22,5 x 2 => b= 45

c= a+b+60
c= 22,5 +45 +60
c=67,5 +60
c=127,5

Answer 2

=>c=a+2×a+60=3×a+60
a+b+c=360
a+2×a+3×a+60=360
6×a+60=360
6×a=300
a=50
b=100
c=210