document.write( "Question 790223: Can someone help me solve this?\r
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document.write( "Answer the following question.
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document.write( "Answer the following question about the system
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document.write( " 7x+5y=2
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document.write( " 8x-9y=17
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document.write( "If we multiplied the second equation by 5, what number would we have to multiply the first equation by to eliminate the y terms? \n" );
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Algebra.Com's Answer #479086 by edjones(8007)![]() ![]() You can put this solution on YOUR website! 8x-9y=17 \n" ); document.write( "40x-45y=85 multiplied by 5 \n" ); document.write( ". \n" ); document.write( "7x+5y=2 To eliminate y you must multiply by 9 to make the two y's add to zero. \n" ); document.write( "63+45y=18 \n" ); document.write( ". \n" ); document.write( "40x-45y=85 \n" ); document.write( "63x+45y=18 \n" ); document.write( "-----------add \n" ); document.write( "103x = 103 making y disapear, leaving only x. \n" ); document.write( "x=1 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |