document.write( "Question 970391: Solve by substitution:\r
\n" );
document.write( "\n" );
document.write( "-4x - y = 4\r
\n" );
document.write( "\n" );
document.write( "x = y + 9 \n" );
document.write( "
Algebra.Com's Answer #593019 by amarjeeth123(569)![]() ![]() ![]() You can put this solution on YOUR website! -4x - y = 4.........equation 1 \n" ); document.write( "x = y + 9...........equation 2 \n" ); document.write( "From 2 we get y=x-9 \n" ); document.write( "Substituting in 1 we get, \n" ); document.write( "-4x-x+9=4 \n" ); document.write( "-5x=4-9 \n" ); document.write( "-5x=-5 \n" ); document.write( "x=1. \n" ); document.write( "y=-8. \n" ); document.write( " |