If 
find x.
Given,
⇒ 
⇒ 
⇒ [2x + 1 + 2 + x + 3] = 0
⇒ 3x + 6 = 0
⇒ x = -2
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Generated by AI. May contain inaccuracies — always verify with your textbook.
5. Algebra of Matrices
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