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Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.
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Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16
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Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36
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Simplify: 2y - 3x+ 6x - y. with steps ....
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