Linear Equations

Solving an equation means finding values that make a statement true, and valid transformations preserve equality.

What you'll learn

  • Interpret an equation as a claim that two sides have equal values.
  • Preserve equality by applying the same operation to both sides.
  • Solve one-step and two-step linear equations by undoing operations in reverse order.
  • Explain why a variable keeps one value while equivalent equations change form.
  • Check a proposed solution in the original equation and its story.

Before you start

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