document.write( "Question 630940: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
\n" );
document.write( "4x – 8y = 48\r
\n" );
document.write( "\n" );
document.write( "11x + 3y = -105.5 \n" );
document.write( "
Algebra.Com's Answer #397244 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 4 x -8 y = 48 .............1 \n" ); document.write( " \n" ); document.write( "11 x + 3 y = -105.50 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by 3 \n" ); document.write( "Multiply (2) by 8 \n" ); document.write( "12 x -24 y = 144 \n" ); document.write( "88 x + 24 y = -844 \n" ); document.write( "Add the two equations \n" ); document.write( "100 x = -700 \n" ); document.write( "/ 100 \n" ); document.write( "x = -7 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "4 x -8 y = 48 \n" ); document.write( "-28 -8 y = 48 \n" ); document.write( " -8 y = 48 + 28 \n" ); document.write( " -8 y = 76 \n" ); document.write( " y = -9 .5\r \n" ); document.write( "\n" ); document.write( "x=-7, y = -9.5 \n" ); document.write( " \n" ); document.write( " |