document.write( "Question 195470: If Amy is 4 years older than her brother, Joe, and Susan is 5 years older than Amy, and the total of their ages is 49. How old is Joe? \n" ); document.write( "
Algebra.Com's Answer #146596 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Let x represent Joe's age. Then x + 4 is Amy's age, and x + 4 + 5 = x + 9 is Susan's age. Add 'em up:\r
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\n" ); document.write( "\n" ); document.write( "Solve for x\r
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\n" ); document.write( "\n" ); document.write( "John
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