document.write( "Question 331166: Plese answer this one,plesee\r
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document.write( "7x+5y=9
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document.write( "4x+5y=6\r
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document.write( "solving thru addition method \n" );
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Algebra.Com's Answer #237436 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! 7x+5y=9 \n" ); document.write( "4x+5y=6 \n" ); document.write( "solving thru addition method \n" ); document.write( ": \n" ); document.write( "multiply the 2nd equation by -1 \n" ); document.write( " 7x + 5y = 9 \n" ); document.write( "-4x - 5y = -6 \n" ); document.write( "-----------------Adding eliminates y, find x \n" ); document.write( "3x = 3 \n" ); document.write( "x = 1 \n" ); document.write( ": \n" ); document.write( "Find y using the 1st equation \n" ); document.write( "7(1) + 5y = 9 \n" ); document.write( "5y = 9 - 7 \n" ); document.write( "y = \n" ); document.write( ": \n" ); document.write( "Check solution in 2nd equation \n" ); document.write( "4(1) + 5( \n" ); document.write( "4 + 2 = 6 \n" ); document.write( " \n" ); document.write( " |