document.write( "Question 833966: My daughter needs help with her algebra homework. She's working on \"Solving Systems Using Elimination\". Here's an example; -2x + y = -9
\n" );
document.write( " x - 3y = 3 \n" );
document.write( "
Algebra.Com's Answer #502762 by richwmiller(17219) You can put this solution on YOUR website! a)-2x + y = -9 \n" ); document.write( "b) x - 3y = 3 \n" ); document.write( "multiply b by 2 \n" ); document.write( "a)-2x + y = -9 \n" ); document.write( "b) 2x - 6y = 6 \n" ); document.write( "add a and b \n" ); document.write( "-5y=-3 \n" ); document.write( "y=3/5 or .6 \n" ); document.write( "plug into either original a or original b \n" ); document.write( "-2x+3/5=-9 \n" ); document.write( "-10x+3=-45 \n" ); document.write( "-10x=-48 \n" ); document.write( "x= 4 4/5 or 4.8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |