document.write( "Question 564005: I need to find out where the equations x + 2y=1and -2x+ y=-4 intersect. I have tried and my lines are not connecting!! \n" ); document.write( "
Algebra.Com's Answer #365183 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I need to find out where the equations x + 2y=1 and -2x+ y=-4 intersect. I have tried and my lines are not connecting!! \n" ); document.write( "--------------------- \n" ); document.write( "x + 2y=1 \n" ); document.write( "-2x+ y=-4 \n" ); document.write( "------- \n" ); document.write( "2x + 4y = 2 (1st eqn times 2) \n" ); document.write( "-2x+ y = -4 \n" ); document.write( "---------------- Add \n" ); document.write( "5y = -2 \n" ); document.write( "y = -2/5 \n" ); document.write( "--------------- \n" ); document.write( "x + 2y = 1 \n" ); document.write( "x + (-4/5) = 1 \n" ); document.write( "x = 9/5 \n" ); document.write( "-------------- \n" ); document.write( "they intersect at the point (9/5,-2/5) \n" ); document.write( " \n" ); document.write( " |