document.write( "Question 241093: what is the answer and explation of x=6y-4,x=-2y+28 \n" ); document.write( "
Algebra.Com's Answer #176576 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "We can attack this problem from a couple different ways so let's take the easy route. Let's multiply the second equation by 3.(I'm doing this so the y cancels)Also note when you multiply everything needs to be multiplied. \n" ); document.write( "(3)x=(3)-2y+(3)28 or 3x=-6y+84 \n" ); document.write( "x=6y-4 \n" ); document.write( "3x=-6y+84 Now we can add both equations together which will give us: \n" ); document.write( "4x=80 Divide both sides by 4 \n" ); document.write( "x=20 Plug this answer into the original equation (either equation will work) \n" ); document.write( "20=6y-4 Add 4 to both sides \n" ); document.write( "24=6y Divide both sides by 6 \n" ); document.write( "4=y There we go plug these answers y=4 and x=20 into both equations and it should work out. \n" ); document.write( "RJ Toftness \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |