Question

Suma a doua numere naturale consecutive este 373.Afla cele doua numere

Answer 1

a+b=373
a=x
b=x+1
x+x+1=373
2x+1=373
2x=373-1
2x=372
x=372:2
x=186
a=186
b=186+1=187

Answer 2

a+b=373
b=a+1
⇒a+a+1=373
⇒2a=373-1
⇒2a=372
⇒a=372/2
⇒a=186;
⇒b=a+1
⇒b=186+1
⇒b=187;
sau b=373-a
⇒b=373-186
⇒b=187'
Verificare 186+187=373;