a.
Augmented matrix is
⎝⎛326212114306⎠⎞ R1=R1/3
⎝⎛1262/3121/314106⎠⎞ R2=R2−2R1
⎝⎛1062/3−1/321/31/341−26⎠⎞ R3=R3−6R1
⎝⎛1002/3−1/3−21/31/321−20⎠⎞ R2=−3R2
⎝⎛1002/31−21/3−12160⎠⎞ R1=R1−2R2/3
⎝⎛10001−21−12−360⎠⎞ R3=R3+2R2
⎝⎛1000101−10−3612⎠⎞ R3=R3/12
⎝⎛1000101−10−361⎠⎞ R1=R1+3R3
⎝⎛1000101−10061⎠⎞ R2=R2−6R3
⎝⎛1000101−10001⎠⎞
b. The system is inconsistent. The given system has no solution.
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