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Does the following system have a unique solution? Why?

Does the following system have a unique solution? Why?
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Does the following system have a unique solution? Why?

Does the following system have a unique solution? Why?-example-1
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User Eroomydna
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8.3k points

1 Answer

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Yes, multiply the bottom equation by 2 to get -2x+4y=16
Add the two equations to cancel out the x and get 8y=29
This has a solution
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User Slaw
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