document.write( "Question 690429: The sum of two numbers is 15 less than twice the first number. Their difference is 5 less than twice the second number. Find each of the numbers.\r
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document.write( "I need to find the answer using substitution. \r
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document.write( "so far, I got
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document.write( "X represents the first number
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document.write( "Y represents the second number\r
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document.write( "x+y=2x-15
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document.write( "x-y=2y-5\r
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document.write( " How do i find the x? Well I know the process... but the numbers confuses me... \n" );
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Algebra.Com's Answer #426296 by farah(18)![]() ![]() You can put this solution on YOUR website! i just continue ur work, based on second equation, x=2y-5+y, x=3y-5,so subtitude x=3y-5 into first equation. 3y-5+y=2(3y-5)-15,it will be y=-2..if y=-2,then x=3(-2)-5,hence x=-11...sorry if i'm doing wrong. \n" ); document.write( " |