document.write( "Question 224361: Solve the system by using the substitution method
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document.write( "x=1/4y-5/4
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document.write( "y=2/5x+14/5\r
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document.write( "(x,y)=( , ) \n" );
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Algebra.Com's Answer #167687 by checkley77(12844) ![]() You can put this solution on YOUR website! x=y/4-5/4 \n" ); document.write( "y=2/5x+14/5\r \n" ); document.write( "\n" ); document.write( "y=2/5(y/4-5/4)+14/5 \n" ); document.write( "y=2/5(y/4)+2/5(-5/4)+14/5 \n" ); document.write( "y=2y/20-10/20+14/5 \n" ); document.write( "y=2y/20-10/20+4*14/20 \n" ); document.write( "y=(2y-10+56)/20 \n" ); document.write( "y=(2y+46)/20 \n" ); document.write( "20y=2y+46 \n" ); document.write( "20y-2y=46 \n" ); document.write( "18y=46 \n" ); document.write( "y=46/18 \n" ); document.write( "y=23/9 ans. \n" ); document.write( "x=(23/9)*1/4-5/4 \n" ); document.write( "x=23/36-5/4 \n" ); document.write( "x=23/36-(5*9)/36 \n" ); document.write( "x=23/36-45/36 \n" ); document.write( "x=-22/36 \n" ); document.write( "x=-11/18 \n" ); document.write( " |