document.write( "Question 280140: slove the follwing system of equation using subatitution 3x+6y=48 and-5x+6y=32 \n" ); document.write( "
Algebra.Com's Answer #203678 by checkley77(12844)\"\" \"About 
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3x+6y=48
\n" ); document.write( "6y=-3x+48 eq#1
\n" ); document.write( "-5x+6y=32
\n" ); document.write( "6y=5x+32 eq#2
\n" ); document.write( "set these 2 equations equal
\n" ); document.write( "-3x+48=5x+32
\n" ); document.write( "-3x-5x=32-48
\n" ); document.write( "-8x=-16
\n" ); document.write( "x=-16/-8
\n" ); document.write( "x=2 ans.
\n" ); document.write( "3*2+6y=48
\n" ); document.write( "6+6y=48
\n" ); document.write( "6y=48-6
\n" ); document.write( "6y=42
\n" ); document.write( "y=52/6
\n" ); document.write( "y=7 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "-5*2+6*7=32
\n" ); document.write( "-10+42=32
\n" ); document.write( "32=32 \n" ); document.write( "
\n" );