Question 1124480
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two orders of fries and four shakes cost $5.90. How much is an order of fries ? 
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It depends on the price for the shake.


f, price of 1 'fries'
h, price of 1 shake

{{{2f+4h=5.9}}}
-
{{{2f=5.9-4h}}}

{{{f=(5.9-4h)/2}}}

{{{f=5.9/2-2h}}}

{{{highlight(f=2.95-2h)}}}