Question

afla valorile lui a b c. daca a+b+c=358,a+b=253,si b+c=238

Answer 1

a+b+c=358a+b=253b+c=238

253+c=358
c=105

a+238=358
a=120

120+b=253
b=133

Answer 2

Inlocuim b+c=238 in a+b+c=358 si obtinem 253+c=358; c=358-253; c=105 inlocuim c in b+c=238 si avem b+105=238; b=133 Avand b si c aflam a=358-133-105; a=120