document.write( "Question 60144This question is from textbook Elementary and Intermediate Algebra
\n" );
document.write( ": To Whomever can assist, Thank you!
\n" );
document.write( "I need to use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate.
\n" );
document.write( "
\n" );
document.write( "5x - 2y = 1
\n" );
document.write( "10x - 4y = 7 \n" );
document.write( "
Algebra.Com's Answer #41293 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! Use either the substitution method or the elimination by addition method to solve the system, whichever seems more appropriate. \n" ); document.write( " \n" ); document.write( "E1: 5x - 2y = 1 \n" ); document.write( "E2: 10x - 4y = 7 \n" ); document.write( "Elimination by addition makes more sense. \n" ); document.write( "Multiply E1 by -2 and add E1+E2 to eliminate one of the variables. \n" ); document.write( "E1: -2(5x-2y)=-2(1)---> -10x+4y=-2 \n" ); document.write( ": \n" ); document.write( "-10x+4y=-2 \n" ); document.write( "10x-4y=7 \n" ); document.write( "___________ \n" ); document.write( "0+0=5 \n" ); document.write( "0=5 \n" ); document.write( "Both variables were eliminated and 0 does not = 5, there is no solution. \n" ); document.write( ": \n" ); document.write( "We call this an inconsistent-independent system. Graphically it's two lines that are parallel and never intersect. \n" ); document.write( ": \n" ); document.write( "Happy Calculating!!! \n" ); document.write( " |