document.write( "Question 712540: Hi! would anyone know how to work problem -15x - 4y = -20 and 5x + 7y = 90 and show in detail about how you came up with a solution? \n" ); document.write( "
Algebra.Com's Answer #438021 by Alan3354(69443) You can put this solution on YOUR website! -15x - 4y = -20 \n" ); document.write( "5x + 7y = 90 \n" ); document.write( "============= \n" ); document.write( "Multiply the 2nd eqn by 3, then add them \n" ); document.write( " \n" ); document.write( " |