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Urgent dau coroana.Rezolvati deplin.​

Urgent Dau CoroanaRezolvati Deplin class=

Răspuns :

a) 4z - z = 24 + 5 * 12

3z = 24 + 60

3z = 84

z = [tex]\frac{84}{3}[/tex]

z = 28

b) 8y + 7y = 1000 : 8 * 3

15y = 125 * 3

15y = 375

y = [tex]\frac{375}{15}[/tex]

y = 25