Daca a = 120, b= 3xa, iar c= a+b-141,afla a+b+c

Răspuns :

a = 120

b = 3a = 3 × 120 = 360

c = a + b - 141  = 120 + 360 - 141 = 480 - 141 = 339

a + b + c = 360 + 339 + 120 = 819


b=3*a
b=3*120
b=360

c=120+360-141
c=480-141
c=339

a+b+c=120+360+339
a+b+c=819