Question 740637
Let's use g for amount of bottles of Gray Goose and y for amount of bottles of Skyy.


g+y=37.  Accounts for the numbers of bottles.


36g+20y=1000, accounting for cost, budget.  Divide both sides of this by 4:
9g+5y=250


Solve the system:
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{{{9g+5y=250}}}
{{{g+y=37}}}
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Substitution may be easier than elimination.