lester mandy and nancy have 783 stamps togethr.

Question

lester mandy and nancy have 783 stamps togethr.lester gives 20 stamps to mandy,and 40 stamps to nancy.lester now has thrice as many stamps as mandy.mandy now has twice as many stamps as nancy.howmany stamps did lester have at first?answer

Answer 1

m+n=783

m+20 +n+40 = 783+60= 843

L-60=3(m+20)=3m +60

L= 3m+120=3(783-n)+120= 2349-3n+120=2469-3n

L=-3n+2469

m+20=2(n+40)= 2n +80

m=2n+60

2n+60+n=783

3n=723

n=241

n= m/2- 30

m=783-241=542

m=2n+60=482-60=542

L=-723+2469= 1726

L=1726

1726-60=1686=3(m+20)=3m+60

3m=1626

m=542

542+20=2(n+40)=2n+80

2n=562-80=482

n=241

originally Lester had 1726, nancy had 241, mandy had 542