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?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #582635 by macston(5194)![]() ![]() You can put this solution on YOUR website! 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. \n" ); document.write( "CHECK: \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 \n" ); document.write( " \n" ); document.write( " |