document.write( "Question 1110671: Williams is half old as Martin but the sum of they age is 18 how old is the brothers \n" ); document.write( "
Algebra.Com's Answer #725668 by josgarithmetic(39617)\"\" \"About 
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6 and 12\r
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\n" ); document.write( "\n" ); document.write( "How to solve:
\n" ); document.write( "Assign a variable, preferably to Martin's age but you can assign one to William instead.\r
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\n" ); document.write( "\n" ); document.write( "Martin, M
\n" ); document.write( "If William is HALF of Martin in age, then this is M/2.\r
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\n" ); document.write( "\n" ); document.write( "Maybe easier to recognize that if William is some age w, then Martin is age 2w.\r
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\n" ); document.write( "\n" ); document.write( "The sum of their ages was given as 18, so \"w%2B2w=18\".
\n" ); document.write( "Solve for w, and you have William's age. Use this to get Martin's age.
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