Question

calculeaza suma cifrelor a si b stiind ca:
5ab+ab3+b7a=906

(totul cu bara deasupra la 5ab;ab3 si b7a

Answer 1

5ab+ab3+b7b=906

500+a*10+b+a*100+b*10+3+b*100+70+a=906

573+a*111+b*111=906

a*111+b*111=906-573

a*111+b*111=333

111*(a+b)=333

a+b=333:111

a+b=3

sper ca te-am ajutat!