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Luminitabogdan81
a fost răspuns

7104-3128-{[1005+(2•z+7•6)]+28:4}+56:8+27:3=2922​

Răspuns :

Catalinamalimon

Răspuns:

z=8

Explicație pas cu pas:

1)7104-3128-{(1005+(2z+42)}+7)+7+9=2922

2)7104-3128-{(1005+2z+42)+7}+7+9=2922

3)7104-3128-{(1072+2z)+7}+7+9=2922

4)7104-3128-(1072+2z+7)7+9=2922

5)7104-3128-(1054+2z)+7+9=2922

6)7104-3128-1054+2z+7+9=2922

7)2938-2z=2922

8)-2z=2922-2938

9)-2z=-16

10)z=8

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