document.write( "Question 147224: Julia's age is 4 less than 5 times Jack's age. If 3 times Jack's age is added to Julia's age, the sum is equal to twice Julia's age. Find their ages. \r
\n" ); document.write( "\n" ); document.write( "I came up the the equation of 5x-4+3x. It doesn't work. Help!
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Algebra.Com's Answer #107593 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
Julia's age is 4 less than 5 times Jack's age. If 3 times Jack's age is added to Julia's age, the sum is equal to twice Julia's age. Find their ages.
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\n" ); document.write( "Assign variables to things you don't know.
\n" ); document.write( "Let x = jack's age
\n" ); document.write( "5x-4 = julia's age
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\n" ); document.write( "then from:
\n" ); document.write( "\"If 3 times Jack's age is added to Julia's age, the sum is equal to twice Julia's age.\" we get our equation:
\n" ); document.write( "(5x-4)+3x = 2(5x-4)
\n" ); document.write( "5x-4+3x = 10x-8
\n" ); document.write( "8x-4 = 10x-8
\n" ); document.write( "4 = 2x
\n" ); document.write( "2 = x (Jack's age)
\n" ); document.write( "5x-4 = 5(2)-4 = 10-4 = 6 (Julia's age)
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