Răspuns :
l + 15 + n = 29
l + n = 29 - 15
l + n = 14
in acest caz lalelele sunt egale acum cu narcisele
cate narcise au inflorit?
14 : 2 = 7
cate lalele au inflorit?
15 + 7 = 22
sau prin metoda grafica
l /....../..+15
n/....../
29 - 15 = 14
14 : 2 = 7 ( narcise)
lalele 7 + 15 = 22
l + n = 29 - 15
l + n = 14
in acest caz lalelele sunt egale acum cu narcisele
cate narcise au inflorit?
14 : 2 = 7
cate lalele au inflorit?
15 + 7 = 22
sau prin metoda grafica
l /....../..+15
n/....../
29 - 15 = 14
14 : 2 = 7 ( narcise)
lalele 7 + 15 = 22
l=lalelele
n=narcisele
l+n=29
l=n+15
n+15+n=29⇔2n+15=29⇔2n=29-15⇔2n=14⇔n=14:2⇔n=7
l=7+15⇔l=22
Raspuns:l=22 ; n=7
n=narcisele
l+n=29
l=n+15
n+15+n=29⇔2n+15=29⇔2n=29-15⇔2n=14⇔n=14:2⇔n=7
l=7+15⇔l=22
Raspuns:l=22 ; n=7