# math

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The local fish market is having a sale on whole fish. the prices are as follows:

You can buy an albacore and a barracuda for\$21
You can buy a barracuda and a carp for \$32
You can buy a carp and a dogfish for \$32
You can buy a dogfish and an eel for \$37
You can buy an eel and flounder for \$31
You can buy a flounder and a gar for \$25
You can buy gar and an albacore for \$26

Determine the cost of each individual fish

• math -

a + b = 21
b + c = 32 or
b = 32 - c so
a + 32 - c = 21
c + d = 32 so
c = 32 - d and
a + 32 - (32 - d) = 21 etc.

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