Question 1090550
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Huey has four dollars more than two times as many dollars as Louie. Dewey has four fewer dollars than two times as many dollars as Huey. 
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H, Huey
L, Louie
D, Dewey


{{{system(H=2L+4,D=2H-4)}}}


{{{2L=H-4}}}

{{{L=H/2-2}}}


In terms of H, same system is  {{{system(L=H/2-2,D=2H-4)}}}.



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... if the total amount of money is 85
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{{{H+L+D=85}}}
{{{H+H/2-2+2H-4=85}}}
{{{H+H/2+2H-6=85}}}
{{{3H+H/2=85+6}}}
{{{3H+H/2=91}}}
{{{6H+H=182}}}
{{{H=182/7}}}
{{{highlight(H=26)}}}
Substitute for H=26 to find L and D.
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{{{highlight(L=11)}}}
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{{{highlight(D=48)}}}