document.write( "Question 435412: Can you please help me solve this word problem?\r
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document.write( "Tony is 10 years older than his Sam. In 5 years, Tony will be twice as old as Sam. How old are they now?\r
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document.write( "We need to solve the word problem using two equations, and I can never get the second equation right. Here's what I get:
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document.write( "x=Sam's age Y= Tony's age
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document.write( "x+10=y
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document.write( "5+y=2x \n" );
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Algebra.Com's Answer #301355 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! the 1st equation is fine\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "for the 2nd equation ___ in five years, EVERYONE is five years older ___ 5+y = 2(x+5) ___ 5+y = 2x+10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtracting equations ___ (5+y) - (y) = (2x+10) - (x+10)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5 = x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ (5) + 10 = y ___ 15 = y \n" ); document.write( " |