5x-4y=-10
-4x+5y=8
(Khan academy)
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Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)
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You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?
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Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply
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