2 years ago

Solve using elimination. –9x − 7y = –10 9x + 8y = 5

Mathematics

1 answer:

guapka [62]2 years ago

7 0

Answer:

x=4y

Step-by-step explanation:

mathpapa

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Step-by-step explanation:

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The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

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