document.write( "Question 953948: Lisa's and her dads ages combined are 51. Her dads age is 4 less than 4 times her age How old is Lisa?
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Algebra.Com's Answer #582635 by macston(5194)\"\" \"About 
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L=Lisa; D=dad
\n" ); document.write( "D=4L-4
\n" ); document.write( "L+D=51 Substitute for D
\n" ); document.write( "L+4L-4=51
\n" ); document.write( "5L=55
\n" ); document.write( "L=11 ANSWER Lisa is 11 years old.
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\n" ); document.write( "L+D=51yrs
\n" ); document.write( "D=51yrs-L
\n" ); document.write( "D=51yrs-11yrs=40 yrs Dad is 40 yrs old.
\n" ); document.write( "40yrs=4(11yrs)-4yrs
\n" ); document.write( "40yrs=44yrs-4yrs
\n" ); document.write( "40yrs=40yrs
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