Strategy for Solving Linear Equations
To solve a linear equation, follow a systematic five-step, general strategy:
- Simplify both sides: Simplify each side of the equation as much as possible individually. Use the Distributive Property to remove any parentheses, and combine like terms.
- Isolate the variable terms: Collect all the variable terms on one side of the equation. This is achieved by using the Addition or Subtraction Property of Equality.
- Isolate the constant terms: Collect all the constant terms on the other side of the equation. Again, use the Addition or Subtraction Property of Equality.
- Solve for the variable: Make the coefficient of the variable term equal to . Use the Multiplication or Division Property of Equality, then formally state the solution to the equation.
- Check the answer: Verify the solution by substituting it back into the original equation to ensure the result simplifies to a true mathematical statement.
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