document.write( "Question 55290: find the point of intersection for the lines below using the elimination
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document.write( "3x+2y=16
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document.write( "2x-3y=-11 \n" );
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Algebra.Com's Answer #37531 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! -2(3x+2y=16) \n" ); document.write( "+3(2x-3y=-11) \n" ); document.write( "____________ \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "-6x-4y=-32 \n" ); document.write( "+6x-9y=-33 \n" ); document.write( "____________ \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "-6x-4y=-32 \n" ); document.write( "+6x-9y=-33 \n" ); document.write( "____________ \n" ); document.write( "0x-13y=-65 \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "-13y=-65 \n" ); document.write( "y=-65/-13 \n" ); document.write( "y=65/13 \n" ); document.write( "y=5 \n" ); document.write( ". \n" ); document.write( "Plug (y=5) back into either original equation and solve for x: \n" ); document.write( "3x+2y=16 \n" ); document.write( "3x+2(5)=16 \n" ); document.write( "3x+10=16 [Solve for x] \n" ); document.write( "3x=6 \n" ); document.write( "x=6/3 \n" ); document.write( "x=2\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( "Plug-in the value of x and y back into the original equations. \n" ); document.write( "2x-3y=-11 \n" ); document.write( "2(2)-3(5)=-11 \n" ); document.write( "4-15=-11 \n" ); document.write( "-11=-11\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |