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Solve the system of equations by substitution -6x+7y=23, -5x+y=24
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Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?
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What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12
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The tile along the edge of a triangular community pool needs to be replaced? ?
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Solve the system of equations by substitution -6x+7y=23, -5x+y=24...
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