document.write( "Question 50065: please help me solve this problem
\n" );
document.write( "
Algebra.Com's Answer #33287 by hulamc723(15)![]() ![]() ![]() You can put this solution on YOUR website! {-4+y=-19 } { 3x-y=15 }\r \n" ); document.write( "\n" ); document.write( "To solve for x and y you will need to use substitution \n" ); document.write( "First, solve for y in the first problem by adding 4 to both sides \n" ); document.write( "-4+y=-19 \n" ); document.write( "y=4-19 \n" ); document.write( "y=-15\r \n" ); document.write( "\n" ); document.write( "since y=-15, we can just substitute it in for y in the second equation \n" ); document.write( "3x-(-15)=15 \n" ); document.write( "3x+15=15 \n" ); document.write( "3x=0 \n" ); document.write( "x=0\r \n" ); document.write( "\n" ); document.write( "so, y=-15 and x=0 (0,-15)\r \n" ); document.write( "\n" ); document.write( "To double check, just substitute the nubers in for the variables! \n" ); document.write( " |