Question

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d(1)=13
d(n)=d(n−1)+17
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Find the 4th term in the sequence

Answer 1

x−4y+5z=0x-4y+5z=0 , x+z−3y=0x+z-3y=0

6x−y+4z=06x-y+4z=0 , x−7y+z=0x-7y+z=0

x+y−z=3x+y-z=3 , 2x−8y+13z=1