document.write( "Question 1087041: The sum of two numbers is -7. Four times first number plus twice the second number is -8. Find the two numbers. \n" ); document.write( "
Algebra.Com's Answer #701329 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! x+y=-7 \n" ); document.write( "x=-y-7 \n" ); document.write( "--------- \n" ); document.write( "4x+2y=-8 \n" ); document.write( "4(-y-7)+2y=-8 \n" ); document.write( "-4y-28+2y=-8 \n" ); document.write( "-4y+2y=28-8 \n" ); document.write( "-2y=20 \n" ); document.write( "y=20/-2 \n" ); document.write( "y=-10 \n" ); document.write( "----------------- \n" ); document.write( "4x+2(-10)=-8 \n" ); document.write( "4x-20=-8 \n" ); document.write( "4x=-8+20 \n" ); document.write( "x=12/4 \n" ); document.write( "x=3 \n" ); document.write( "---------------------- \n" ); document.write( "4*3+2*-10=-8 \n" ); document.write( "12-20=-8 \n" ); document.write( " \n" ); document.write( " |