Question

abcd+ abc+ab+a=3804.
Va rog frumos ajutatima!!

Answer 1

abcd+ abc+ab+a=3804.
1000a+100b+10c+d+100a+10b+c+10a+b+a=3804
1111a+111b+11c+d=3804
3804:1111=3 si rest
deci a=3
3*1111+111b+11c+d=3804
111b+11c+d=3804-3333
111b+11c+d=471
471:111=4 si rest
deci b=4
111*4+11c+d=471
11c+d=471-444
11c+d=27
27:11=2 si rest
deci c=2
2*11+d=27
d=27-22=5

verificare
3425+342+34+3=3804