dau coroana va rogggg

a)
[tex] \frac{a}{8} + \frac{5}{8} = 1 \\ \\ \frac{5 + a}{8} = 1 \\ \\ 5 + a = 8 \\ a = 3[/tex]
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b)
[tex] \frac{2 + c}{7} < \frac{6}{7} \\ \\ 2 + c < 6 \\ c < 4[/tex]
c€{3,2,1,0,-1,-2,-3,.........}