GCSE Maths - How to Rearrange Formulas #48

The video tutorial explains how to rearrange formulas to isolate a specific variable, similar to solving equations. It covers making X and B the subjects of equations through various steps like subtraction, division, and multiplication. The tutorial includes examples with detailed steps, emphasizing the importance of expanding brackets and swapping sides to achieve the desired form.

What is the first step in making X the subject of the equation y - 4 = 3X?

• Add 4 to both sides

• Multiply both sides by 3

• Divide both sides by 3

• Subtract 4 from both sides

In the equation a + 5 = b / 3, what operation is needed to eliminate the division by 3?

• Add 3 to both sides

• Subtract 5 from both sides

• Multiply both sides by 3

• Divide both sides by 5

When expanding the bracket in the equation 2y = 6 + 3X, what is the result?

• 2y = 6X - 3

• 2y = 3 + 6X

• 2y = 6X + 3

• 2y = 3X + 6

What is the final form of the equation after isolating X in 2y - 6 = 3X?

• X = 3(2y - 6)

• X = 2y - 6

• X = 3 / (2y - 6)

• X = (2y - 6) / 3

In the equation 6A - 3 = b / 2, what is the result after multiplying both sides by 2?

• 6A - 6 = b

• 12A - 3 = b

• 6A - 3 = 2b

• 12A - 6 = b