document.write( "Question 1181671: Solve by the substitution method. What is the solution to the system?
\n" );
document.write( "x-y=3
\n" );
document.write( "7x+3y=-19 \n" );
document.write( "
Algebra.Com's Answer #811580 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! the top is also x=y+3 \n" ); document.write( "so the second is 7(y+3)+3y=-19 \n" ); document.write( "7y+21+3y=-19 \n" ); document.write( "10y=-40 \n" ); document.write( "y=-4 \n" ); document.write( "x=-1 \n" ); document.write( "- \n" ); document.write( "check in second -7-12=-19 \n" ); document.write( " |