GCSE Secondary Maths Age 13-17 - Algebra: Algebra - Explained

The video tutorial explains how to solve the algebraic equation 4X + 5 = X + 26. It begins by introducing the equation and the concept of balancing both sides. The teacher demonstrates how to simplify the equation by removing X from both sides, resulting in 3X + 5 = 26. Further simplification leads to 3X = 21, and the value of X is found to be 7 by dividing both sides by 3. The tutorial concludes with a discussion on the marks awarded for solving the equation and emphasizes the importance of understanding linear equations.

What is the initial equation presented in the video?

• X + 5 = 4X + 26

• 3X + 5 = 26

• 4X + 5 = X + 26

• 4X = 5 + X + 26

What is the result after removing X from both sides of the equation?

• 3X = 21

• 4X = 21

• 3X + 5 = 26

• X + 5 = 26

After subtracting 5 from both sides, what does the equation become?

• 3X = 21

• 3X + 5 = 21

• X = 7

• 4X = 21

What is the value of X in the equation 3X = 21?

• 3

• 7

• 21

• 5

How many marks are awarded for solving the equation correctly?

• Two marks

• One mark

• Four marks

• Three marks