document.write( "Question 240706: How do you write the equation for this problem?\r
\n" ); document.write( "\n" ); document.write( "Alex and Alicia are twins. Kevin is 5 years older than the twins. Their ages total 53. How old are the twins?
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Algebra.Com's Answer #176976 by College Student(505)\"\" \"About 
You can put this solution on YOUR website!
Let Alex = x
\n" ); document.write( "Let Alicia = x
\n" ); document.write( "Since they are twins we can assign the same variable to both of them.
\n" ); document.write( "Let Kevin = x+5
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\n" ); document.write( "Since the sum of their ages is 53, the equation becomes:
\n" ); document.write( "\"x%2Bx%2B%28x%2B5%29=53\"
\n" ); document.write( "Now, solve for x to find the twin ages.
\n" ); document.write( "\"3x%2B5=53\"
\n" ); document.write( "\"3x=53-5\"
\n" ); document.write( "\"3x=48\"
\n" ); document.write( "\"x=48%2F3\"
\n" ); document.write( "\"x=16\" ...this is how old each of the twins are.
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\n" ); document.write( "To find out Kevin's age, you would add 5 years. \"x%2B5=16%2B5=21\"
\n" ); document.write( ".
\n" ); document.write( "Done! :)
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