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  3. 1 solve each system by substitution 1 2x 7y 1 7x y

1 Solve each system by substitution 1 2x 7y 1 7x y 20 2 2...

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Algebra

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1 Solve each system by substitution 1 2x 7y 1 7x y 20 2 2 8x 5y 1 y 3 B2

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