document.write( "Question 370363: Use RESCA:
\n" ); document.write( "Lulu is three yrs. older than Pearl. In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago. Find pearl's age. \n" ); document.write( "
Algebra.Com's Answer #264114 by ankor@dixie-net.com(22740)\"\" \"About 
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Lulu is three yrs. older than Pearl.
\n" ); document.write( "In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago.
\n" ); document.write( " Find pearl's age.
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\n" ); document.write( "Write an equation for each statement:
\n" ); document.write( "\"Lulu is three yrs. older than Pearl.\"
\n" ); document.write( "L = P + 3
\n" ); document.write( ":
\n" ); document.write( "\" In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago.\"
\n" ); document.write( "L + 4 = 2(P - 3)
\n" ); document.write( "L + 4 = 2P - 6
\n" ); document.write( "L = 2P - 6 - 4
\n" ); document.write( "L = 2P - 10
\n" ); document.write( "From the 1st statement; replace L with (P+3)
\n" ); document.write( "P + 3 = 2P - 10
\n" ); document.write( "3 + 10 = 2P - P
\n" ); document.write( "13 = P
\n" ); document.write( "Pearl is 13 yrs old, obviously Lulu is 16
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\n" ); document.write( ":
\n" ); document.write( "Check solution in the statement:
\n" ); document.write( "\"In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago.\"
\n" ); document.write( "16 + 4 = 2(13 - 3)
\n" ); document.write( "20 = 2(10)
\n" ); document.write( ":
\n" ); document.write( "I have no idea what RESCA is! \n" ); document.write( "
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