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1/2(2+x)=4
2+x=8
x=6
1/2*(3+y)=8
3+y=16
y=13
Odp. B=(6, 13)
4 = (2+x₂)/2
8 = 2+x₂
x₂ = 6
8 = (3+y₂)/2
16 = 3+y₂
y₂=13
B(6,13)