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lesson 'Finding surface area of a rectangular box' in section 'Geometry_Word_Problems'
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lesson 'Problems on Vieta's formulas' in section 'Evaluation_Word_Problems'
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lesson 'More solved problems on a single linear equation' in section 'Equations'
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lesson 'OVERVIEW of lessons on solving linear equations and word problems in one unknown' in section 'Equations'
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lesson 'Solved problems on binomial coefficients' in section 'Permutations'
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lesson 'Finding the common/shared area of two triangles' in section 'Geometry_Word_Problems'
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lesson 'Selected probability problems from the archive' in section 'Probability-and-statistics'
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lesson 'Entertainment Travel and Distance problems for the day of April, 1' in section 'Travel_Word_Problems'
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lesson 'Entertainment Travel and Distance problems for the day of April, 1' in section 'Travel_Word_Problems'
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lesson 'Three methods for solving standard (typical) coin word problems' in section 'Word_Problems_With_Coins'
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lesson 'Three methods for solving standard (typical) problems on tickets' in section 'Linear-systems'
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lesson 'Oranges and grapefruits' in section 'Linear-systems'
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lesson 'One unusual problem to solve using system of two equations' in section 'Linear-systems'
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lesson 'Using system of two equations to solve the problem for the day of April, 1' in section 'Linear-systems'
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lesson 'Solving systems of non-linear equations by reducing to linear ones' in section 'Linear-systems'
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lesson 'Solving some special systems of non-linear algebraic equations' in section 'Systems-of-equations'
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lesson 'Find the slope of a straight line in a coordinate plane passing through two given points' in section 'Geometry_Word_Problems'
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lesson 'Equation for a straight line having a given slope and passing through a given point' in section 'Geometry_Word_Problems'
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