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Rizoaicaandreea
a fost răspuns

Determina valoarea lui a din.
(324:6+345:5)×2+1237=43×a+1354

Răspuns :

Parola
[tex](54+69)*2+1237=43*a+1354[/tex]
[tex]123*2+1237=43*a+1354[/tex]
[tex]246+1237=43*a+1354[/tex]
[tex]1483=43*a+1354[/tex]
[tex]43*a=1483-1354[/tex]
[tex]43*a=129[/tex]
[tex]a=129:43[/tex]
[tex]a=3[/tex]

Iarinna
(324:6+345:5)x2+1237=
(54+69)x2+1237=
123x2+1237=
246+1237=
1483

43xa+1354=1483
43xa=1483-1354
43xa=129
a=129:43
a=3

Coroana?:) Sper ca te-am ajutat.