Classify The Solutions To The Following Systems Of Equations According

Classify the solutions to the following systems of equations according to Section B.2 as unique, nonunique, or nonexistent.
a.2×1 – 6×2 = 10
4×1 – 12×2 = 20
b.6×1 + 3×2 = 9
2×1 + 6×2 = 12
c.8×1 + 4×2 = 32
4×1 + 2×2 = 8
d.1×1 + 1×2 + 1×3 = 1
2×1 + 2×2 + 2×3 = 2
3×1 + 3×2 + 3×3 = 3

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