A farmer has twice as many pigs as cows, and 4 more cows than goats. If the farmer has 56 animals total, how many goats does he have?
A step-by-step solution is:
11
Let x be the number of goats.

Cows:4 + x.

Pigs:2(4 + x) = 8 + 2x.

Total:x + 4 + x + 8 + 2x = 56.

4x + 12 = 56.

4x = 44.

x = 11 goats.

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Therefore, the answer is 11