Question

Am un nr.din el scad 543.la rezultat adaug 251.la noul rezultat pun 100 si obtin 484.de la ce nr am pornit?

Answer 1

[(x-543)+251]+100=484
(x-543)+251=384
x-543=133
x=543+133
x=676

Answer 2

x-543+251+100=484

x-543+252=484-100

x-543+251=384

x-543=384-251

x-543=133

x=133+543

x=676

verificare:

676-543+251+100=

=133+351=

=484