Answer: The man has 10$.
Step-by-step explanation:
We start with the number 60. He sells the goat for 70 dollars, and makes a 10 dollar profit. Then, he buys it for 80$, leaving him with 0. But then he sells it for 90$, making another profit of 10$.
x^4 + 7x^3 - 2x^2 - 9x - 3 - (10/x+8)
Answer:
x = 100
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