Solve a proportion by multiplying by the LCD ex 13, (2n - 9)/7 = (3 - n)/4

The video tutorial explains how to solve a proportion by eliminating fractions using the least common denominator (LCD) and the cross product method. It demonstrates the application of the distributive property to simplify equations and solve for the variable N. The tutorial concludes with the final solution, showing the step-by-step process to reach the answer.

Explain how to eliminate fractions when solving the equation involving N.

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What is the least common denominator of the fractions 2/7 and 2/4?

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What is the result of applying the distributive property to the expression 4 * (2N - 9)?

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How do you combine like terms when solving for N in the equation 15N - 36 = 21?

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What is the final value of N after solving the equation, and how did you arrive at that answer?

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