Question 120865
n = number of nickels
d = number of dimes
Nick:
{{{5n = 5(d + 7)}}}
{{{10d = 40}}}
Dan:
{{{10(d-4)}}}
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Nick has {{{5d + 35)}}} in nickels
plus {{{40}}} in dimes
for total of {{{5d + 75}}}cents
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Dan has {{{10d - 40}}}cents in dimes
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Yhe total is:
{{{15d + 35}}} cents