In this lesson, you learned how to:

• Explain what it means for a value or pair of values to be a solution to an equation.
• Find solutions to equations by reasoning about a situation or by using algebra.

Here are the activities that helped you reach those goals:

• 1.4.1: Finding the Solution to an Equation in One Variable, Part 1 
  • In this activity, you began to determine if a value was a solution to a given one-variable equation and identified what the solution could mean. For a value to be a solution to an equation, it must make the equation true.
• 1.4.2: Writing Equations to Represent Constraints
  • In this activity, you wrote equations from situations given the constraints of the problem.
  • 1.4.2: Self Check
  • 1.4.2: Additional Resources
• 1.4.3: Finding the Solution to an Equation in Two Variables
  • In this activity, you were able to find the solution to an equation with two variables, given the solution to one of the variables.
  • 1.4.3: Self Check
  • 1.4.3: Additional Resources
• 1.4.4: Finding the Solution to an Equation in One Variable, Part 2
  • In this activity, you worked to find multiple solutions to equations and identified what the solutions mean in this situation.

After these activities, you completed the following practice:

• 1.4.5: Practice