document.write( "Question 412059: I am not understanding how to Solve the system of linear equation using matrices\r
\n" ); document.write( "\n" ); document.write( "4x-y+2z=5
\n" ); document.write( " 2y+z=4
\n" ); document.write( "4x+y+3z=10\r
\n" ); document.write( "\n" ); document.write( "Can you guide me step by step in solving it?\r
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Algebra.Com's Answer #289535 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( "Note: finding the value of a 3x3 matrix is done as follows:
\n" ); document.write( "\"%28matrix%283%2C3%2Ca1%2Cb1%2Cc1%2Ca2%2Cb2%2Cc2%2Ca3%2Cb3%2Cc3%29%29\" = a1(b2c3-c2b3) - b1(a2c3-c2a3) + c1(a2b3-b2a3)
\n" ); document.write( "4x-y+2z=5
\n" ); document.write( "2y+z=4
\n" ); document.write( "4x+y+3z=10
\n" ); document.write( " \r
\n" ); document.write( "\n" ); document.write( "D = \"matrix%283%2C3%2C4%2C-1%2C2%2C0%2C2%2C1%2C4%2C1%2C3%29\" = 0
\n" ); document.write( " 4*5 -(-1)1*-4 +2*-8 = 0
\n" ); document.write( " this system has NO solution as D = 0 \n" ); document.write( "
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