document.write( "Question 455163: Solving:\r
\n" );
document.write( "\n" );
document.write( " -2 x-3y = 14
\n" );
document.write( " 5 x-5y = 15 \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "Using Substitution Method.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #312542 by siddhant(1)![]() ![]() ![]() You can put this solution on YOUR website! -2x=14+3y \n" ); document.write( "x=-(14+3y)\2 \n" ); document.write( "therefore, substitute the value of x in equation 5x-5y=15 \n" ); document.write( "5(-14-3y)\2-5y=15 \n" ); document.write( "[(-70-15y)-10y]/2=15 \n" ); document.write( "(-25y-70)=30 \n" ); document.write( "y=-4 \n" ); document.write( "x=-1 \n" ); document.write( " |