Question

ma gandesc la un numar.il inmultesc cu 5 si ii adaug 12384.rezultatul il maresc de sase ori si il adun cu 28920.noul rezultat il impart la 24 si obtin 4331.la ce nr m-am gândit?

Answer 1

a-nr.
[(a×5+12384)×6+28920]:24=4331
(5a+12384)×6+28920=4331×24
(5a+12384)×6+28920=103944
(5a+12384)×6=103944-28920
(5a+12384)×6=75024
5a+12384=75024:6
5a+12384=12504
5a=12504-12384
5a=120
a=120:5
a=24

Answer 2

[(x×5+12384)×6+28920]:24=4331
(5x+12384)×6+28920]:24=4331
(30x+74304+28920):24=4331
(30x+103224):24=4331
30x+103224=4331 ×24
30x+103224=103944
30x=103944-103224
30x=720
x=720:30
x=24