document.write( "Question 860346: one-fourth of eric age last year plus triple his age next year is 45. How old is Eric? \n" ); document.write( "
Algebra.Com's Answer #518340 by mananth(16946)\"\" \"About 
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Eric's age now------x\r
\n" ); document.write( "\n" ); document.write( "last year x-1 years\r
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\n" ); document.write( "\n" ); document.write( "next year age = x+1\r
\n" ); document.write( "\n" ); document.write( "(x-1)/4 + 3(x+1) =45\r
\n" ); document.write( "\n" ); document.write( "x-1 +12(x+1)=4*45\r
\n" ); document.write( "\n" ); document.write( "x-1+12x+12 =180\r
\n" ); document.write( "\n" ); document.write( "13x+11=180\r
\n" ); document.write( "\n" ); document.write( "13x= 180-11\r
\n" ); document.write( "\n" ); document.write( "13x=169\r
\n" ); document.write( "\n" ); document.write( "x= 13 years age now
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