Question

Suma a daua numere este312 iar daca se ampart unul la celalalt se obtin catul2 si. restul 12 afla nr

Answer 1

a+b=312
a:b=2 rest 12
a=2b+12
2b+12+b=312
3b=312-12
3b=300
b=300:3=100
a=2b+12=2x100+12=212
212+100=312

Answer 2

a+b=312
a=2b+12=>2b+12+b=312=>3b=312-12=300=>b=300:3=100
a=2b+12=100x2+12=200+12=212