document.write( "Question 1022679: Jessica is 4 years younger than Nadia.
\n" ); document.write( "8 years ago, Nadia was 3 times as old as Jessica. \n" ); document.write( "
Algebra.Com's Answer #753246 by VFBundy(438)\"\" \"About 
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J = Jessica's age
\n" ); document.write( "N = Nadia's age
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\n" ); document.write( "Jessica is 4 years younger than Nadia:
\n" ); document.write( "J = N - 4
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\n" ); document.write( "Put all the variables on the left side of the equation:
\n" ); document.write( "J - N = -4
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\n" ); document.write( "8 years ago, Nadia was 3 times as old as Jessica:
\n" ); document.write( "N - 8 = 3(J - 8)
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\n" ); document.write( "Simplify above:
\n" ); document.write( "N - 8 = 3J - 24
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\n" ); document.write( "Put all the variables on the left side of the equation:
\n" ); document.write( "-3J + N = -16
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\n" ); document.write( "List both equations:
\n" ); document.write( "J - N = -4
\n" ); document.write( "-3J + N = -16
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\n" ); document.write( "Add both equations together:
\n" ); document.write( "-2J = -20
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\n" ); document.write( "Solve for J:
\n" ); document.write( "J = 10
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\n" ); document.write( "Substitute J = 10 into any of the equations to find N:
\n" ); document.write( "J = N - 4
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\n" ); document.write( "10 = N - 4
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\n" ); document.write( "N = 14
\n" ); document.write( "
\n" ); document.write( "J = Jessica's age = 10
\n" ); document.write( "N = Nadia's age = 14
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