document.write( "Question 108090: i need to solve this system using an augmented matrix and i don't know how colud someone please help me.
\n" ); document.write( "5x+2y=2
\n" ); document.write( "3x-y=-12 \n" ); document.write( "
Algebra.Com's Answer #78736 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
AN AUGMENTED MATRIX IS A STANDARD MATRIX WITH THE NUMERIC VALUES ADDED THUS
\n" ); document.write( "5,2
\n" ); document.write( "3-1
\n" ); document.write( "BECOMES:
\n" ); document.write( "5,2,2
\n" ); document.write( "3,-1,-12 NOW MULTIPLY THE SECOND ENTRY BY 2 & ADD THE 2 ROWS\r
\n" ); document.write( "\n" ); document.write( "5,2,2
\n" ); document.write( "6,-2,-24
\n" ); document.write( "----------------
\n" ); document.write( "11,0,-22 OR
\n" ); document.write( "11X=-22
\n" ); document.write( "X=-22/11
\n" ); document.write( "X=-2 ANSWER.
\n" ); document.write( "5*-2+2Y=2
\n" ); document.write( "-10+2Y=2
\n" ); document.write( "2Y=2+10
\n" ); document.write( "2Y=12
\n" ); document.write( "Y=12/2
\n" ); document.write( "Y=6 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "3*-2-6=-12
\n" ); document.write( "-6-6=-12
\n" ); document.write( "-12=-12\r
\n" ); document.write( "
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