a+b+c=1500
a:b=1 rest c
b=150+c
a=bx1+c
a=b+c
a=150+c+c
a=150+2c
150+c+c+150+c+c=1500
c+c+c+c= 1500-150-150
c+c+c+c=1200
4c=1200
c=1200:4
c=300
b=150+300
b=450
a:450=1 rest 300
a=450x1+300
a=450+300
a=750
750+450+300=1500 (A)
750:450=1 rest 300 (A)
450=150+300 (A)
sper ca te-am ajutat!