Finding Common Multiples and Distributing Equations

The video is a continuation of Math 8 Unit 4 Lesson 10, addressing issues from a previous recording. It covers solving two equations, B and D, by eliminating fractions and using the least common multiple. The instructor demonstrates step-by-step solutions, emphasizing the importance of practice to reinforce learning.

Why was this lesson continued?

• The teacher wanted to add more examples.

• The original video was too long.

• The original video got cut off at the end.

• The students requested a new lesson.

What is the least common multiple of 4 and 6 used to eliminate fractions?

• 8

• 12

• 14

• 10

After multiplying both sides by 12, what does the equation become?

• 4 * 4 * 2 - R = 3 * 3 + r

• 5 * 5 * 2 - R = 4 * 4 + r

• 3 * 3 * 2 - R = 2 * 3 + r

• 6 * 6 * 2 - R = 5 * 5 + r

What is the result of distributing 9 * 2 in the equation?

• 22

• 20

• 18

• 16

What is the least common multiple of 15 and 6?

• 20

• 25

• 30

• 35

What is the result of multiplying both sides by 30 in the equation?

• 3 * 3 * a - 7 = 6 * a + 4

• 2 * 2 * a - 7 = 5 * a + 4

• 5 * 5 * a - 7 = 8 * a + 4

• 4 * 4 * a - 7 = 7 * a + 4

What is the result of distributing 4 * a in the equation?

• 6a

• 5a

• 4a

• 3a

What is the final solution for 'a' in the equation?

• -48

• -18

• -38

• -28

Why is it beneficial to practice solving equations?

• It reduces the number of mistakes.

• It helps in memorizing formulas.

• It improves speed in calculations.

• It helps in understanding the pattern of solving equations.

What is the purpose of finding a common multiple in equations?

• To change the equation completely.

• To add more variables.

• To eliminate fractions.

• To make the equation longer.