document.write( "Question 975578: Pls help: \"find+x+and+y+in+terms+of+a+and+b+if+4x+-+y+=+3b+-+2a+and+3x++%2B++y+=+4b+-+5a\" \n" ); document.write( "
Algebra.Com's Answer #597300 by Boreal(15235)\"\" \"About 
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4x-y=3b-2a
\n" ); document.write( "3x+y=4b-5a\r
\n" ); document.write( "\n" ); document.write( "7x=7b-7a
\n" ); document.write( "x=b-a\r
\n" ); document.write( "\n" ); document.write( "12x-3y=9b-6a
\n" ); document.write( "-12x-4y=-16b+20a\r
\n" ); document.write( "\n" ); document.write( "-7y=-7b+14a
\n" ); document.write( "y= b-2a\r
\n" ); document.write( "\n" ); document.write( "Check
\n" ); document.write( "4b-4a- (b-2a)=3b-2a
\n" ); document.write( "3(b-a)+(b-2a)=3b-3a+b-2a=4b-5a\r
\n" ); document.write( "\n" ); document.write( "(b-a,b-2a)
\n" ); document.write( "
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