document.write( "Question 306156: What is the y-coordinate of the point of intersection for x - y = 9 and x + 6y = -12? \n" ); document.write( "
Algebra.Com's Answer #219145 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! What is the y-coordinate of the point of intersection for \n" ); document.write( "x - y = 9 \n" ); document.write( "x + 6y = -12 \n" ); document.write( "--- \n" ); document.write( "Subtract the 1st equation from the 2nd; then solve for \"y\": \n" ); document.write( "7y = -21 \n" ); document.write( "y = -3 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |