Answer:
4a + 2b + c = 23,899
400a + 20b + c = 32,179
1,600a + 40b + c = 33,779
[4 2 1]^-1 [23,899] [-10]
[400 20 1] [32,179] = [680]
[1,600 40 1] [33,779] [22,579]
a = -10, b = 680, c = 22,579
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