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Mathematics, 30.06.2019 09:00 3steves

Which expression is equivalent to (-4y--9x) a.-7y-8x b.-7y+8x c.-y-10x d. y+10x

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Which expression is equivalent to (-4y--9x) a.-7y-8x b.-7y+8x c.-y-10x d. y+10x...
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