document.write( "Question 432100: y= x + 12 8x + 14y = 144 i have a multiple choice question and i cant figure out witch one is right because none of the answers match up (6,4,9,8) \n" ); document.write( "
Algebra.Com's Answer #299722 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! y= x + 12 \n" ); document.write( "8x + 14y = 144 \n" ); document.write( "-------- \n" ); document.write( "Sub for y into the 2nd eqn \n" ); document.write( "8x + 14(x+12) = 144 \n" ); document.write( "8x + 14x + 168 = 144 \n" ); document.write( "22x = -24 \n" ); document.write( "x = -12/11 \n" ); document.write( "----------- \n" ); document.write( "y = -12/11 + 12 \n" ); document.write( "y = 120/11 \n" ); document.write( " \n" ); document.write( " |