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

The video tutorial explains how to solve an equation by balancing both sides, first subtracting 7 from each side to simplify the equation to 3X = -6, and then dividing by 3 to find X = -2. It also covers calculating the expression 3F - 2G by substituting given values for F and G, resulting in a final answer of 8. Marks are awarded for correct methods and final answers.

What is the first step in solving the equation 3X + 7 = 1?

• Multiply both sides by 3

• Subtract 7 from both sides

• Add 7 to both sides

• Divide both sides by 3

After subtracting 7 from both sides of the equation, what is the next step?

• Subtract 3 from both sides

• Divide both sides by 3

• Multiply both sides by 3

• Add 6 to both sides

What is the value of X in the equation 3X = -6?

• -3

• 3

• -2

• 2

If F = 6, what is the value of 3F?

• 30

• 12

• 24

• 18

Given F = 6 and G = 5, what is the result of 3F - 2G?

• 5

• 12

• 10

• 8