document.write( "Question 759384: Tom is n years old. In 7 years he will be 21 years old. How old is Tom ?
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Algebra.Com's Answer #462035 by lenny460(1073)![]() ![]() You can put this solution on YOUR website! Tom is n years old. In 7 years he will be 21 years old. How old is Tom ?\r \n" ); document.write( "\n" ); document.write( "n + 7 = 21\r \n" ); document.write( "\n" ); document.write( "Subtract 7 from each side of the equation.\r \n" ); document.write( "\n" ); document.write( "n + 7 - 7 = 21 - 7\r \n" ); document.write( "\n" ); document.write( "Combine like terms:\r \n" ); document.write( "\n" ); document.write( "7 - 7 = 0\r \n" ); document.write( "\n" ); document.write( "21 - 7 = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer:\r \n" ); document.write( "\n" ); document.write( "Tom is 14 years old.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Lennox Obuong \n" ); document.write( "Algebra Tutor \n" ); document.write( "Nairobi, Kenya \n" ); document.write( "Email: lennoxobuong@yahoo.com \n" ); document.write( " |