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Express the GCD(2546,122) as a linear combination of 2546 and 122

I found the gcd to be 8 and I went about writing it as a linear combination but somewhere I went wrong.. can someone find my mistake?

2=6-4(1)

2=6-[10-6(1)]

2=2(6)-10

2=2[16-10(1)]-10(1)

2=2(16)-3(10)

2=2(16)-3[106-16(6)]

2=14(16)-3(106)

2=14[122-106(1)]-3(106)]

2=14(122)-17(106)

2=14(122)-17[2546-122(20)]

2=354(122)-17(2546)

Obviously this is wrong because my linear combination doesn't equal 2. Where did I make a mistake?

user26857
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Lil
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