document.write( "Question 1176252: Solve the problem. Write your solution.
\n" ); document.write( "Maridel is 2 years older than Trisha. The sum of their ages is 20. Find their present ages.(5pts)
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Algebra.Com's Answer #802724 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let Maridel's age be \"M\" and Trisha's age be \"T\"\r
\n" ); document.write( "\n" ); document.write( "if Maridel is \"2+\"years older than Trisha, we have\r
\n" ); document.write( "\n" ); document.write( " \"M=T%2B2\".......eq.1\r
\n" ); document.write( "\n" ); document.write( "if the sum of their ages is \"20\", we have\r
\n" ); document.write( "\n" ); document.write( "\"M%2BT=20\".....eq.2....substitute \"M\" from eq.1\r
\n" ); document.write( "\n" ); document.write( "\"T%2B2%2BT=20\"\r
\n" ); document.write( "\n" ); document.write( "\"2T=20-2\"\r
\n" ); document.write( "\n" ); document.write( "\"2T=18\"\r
\n" ); document.write( "\n" ); document.write( "\"T=9\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"M=T%2B2\".......eq.1..substitute \"T\"\r
\n" ); document.write( "\n" ); document.write( "\"M=9%2B2\"\r
\n" ); document.write( "\n" ); document.write( "\"M=11\"\r
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\n" ); document.write( "\n" ); document.write( " their present ages: Maridel is \"11\" years old and Trisha is \"9\" years old\r
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