Question

Mihnea si Raluca au impreuna 40 de timbre.Raluca are cu 6 mai multe decat Mihnea.Scrie numarul de timbre al fiecarui copil.

Answer 1

M+R=40⇔M+6+M=40⇔2M=40-6⇔2M=34⇔M=34:2=17
R=M+6=17+6=23
RASPUNS:Mihnea17 timbre,Raluca 23

Answer 2

40-6=36. 36:2=18 timbre are Mihnea. 18+6=24 timbre are Raluca. Verificare:24+18=42 timbre