document.write( "Question 93102: 3Y=X+5 3X-9Y= -10 \n" ); document.write( "
Algebra.Com's Answer #67734 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! There are several methods for solving this system of equations. I will use the method of addition: \n" ); document.write( "First, line-up the variables: \n" ); document.write( "-x+3y=5 \n" ); document.write( "3x-9y=-10\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( ".Next, multiply one of the equations by a number that will cause a variable to cancel out: \n" ); document.write( "3(-x+3y=5)=-3x+9y=15 \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Add the equations together: \n" ); document.write( "-3x+9y=15 \n" ); document.write( "3x-9y=-10 \n" ); document.write( "___________ \n" ); document.write( "0=-5 (incorrect answer, therefore, there is \"no solution\"] \n" ); document.write( " |