-x2 3x1 -x1 + x2 x3 = 0 - 3x3 = 0 = 0

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A: Steps and explanations are as follows:In case of any doubt, please let me know. Thank you.

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Q: what is 2(p+4)=2

A: Step 1:  2(p+4)=2 Step 2: 2p+8=2 Step 3: 2p=2-8 Step 4: 2p=-6 Step 5:  p=-6/2 Step 6: p= -3