What does this dot in this equation mean?

What does this dot in this equation mean?
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1 Answer

Answer :

I’m fairly certain it’s multiply.
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If a + b = 1 ,and the ordered pair (a, b) satisfies the equation 2x + y = , then it also satisfies (a) 2x + y (b) 3x + 4y = 3 (c) x + 2y = (d) 2x + 4y =

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