GCSE Maths - How to Solve Algebraic Equations (Part 3 of 3) #45

The video tutorial explains how to solve algebraic equations where the unknown variable appears on both sides. It provides step-by-step instructions for solving equations with different variables, such as X, Y, and A, by isolating the variable on one side and simplifying the equation. The tutorial emphasizes the importance of balancing the equation by performing the same operations on both sides.

What is the first step in solving an equation where the unknown appears on both sides?

• Get all unknowns on one side and numbers on the other

• Add the same number to both sides

• Multiply both sides by the same number

• Divide both sides by the same number

In the equation 2y - 7 = 3 - 3y, what should you do first to isolate the variable y?

• Divide both sides by 5

• Multiply both sides by 2

• Add 3y to both sides

• Subtract 3 from both sides

After rearranging the equation 2y - 7 = 3 - 3y, what is the next step to solve for y?

• Multiply both sides by 3

• Subtract 7 from both sides

• Add 7 to both sides

• Divide both sides by 2

In the equation -5 = 7 + 2A, what operation should be performed first to solve for A?

• Divide both sides by 2

• Multiply both sides by 2

• Subtract 7 from both sides

• Add 7 to both sides

What is the final step to solve the equation -12 = 2A for A?

• Divide both sides by 2

• Multiply both sides by 2

• Subtract 12 from both sides

• Add 12 to both sides