document.write( "Question 841622: David has two brothers. One brother is two years younger than him and the other is five years older than him.\r
\n" ); document.write( "\n" ); document.write( "a) Let david be x years old. Write down an expression for the sum of their ages.
\n" ); document.write( "b) The sum of their ages is 39. Write down an equation and solve it to find x
\n" ); document.write( "c) What are their ages? \n" ); document.write( "

Algebra.Com's Answer #507072 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "David has two brothers. One brother is two years younger than him 
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document.write( "and the other is five years older than him.
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document.write( "a) Let david be x years old. Sum of their ages:  x + (x-2) + (x+5)
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document.write( "b) x + (x-2) + (x+5) = 39
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document.write( "      3x +3 = 39
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document.write( "          3x = 36
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document.write( "           x = 12
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document.write( "c) What are their ages?  David is 12. Brothers are 10 and 17 \n" );
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