Solving One-Step Equation by Subtracting

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
6132 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

This lesson teaches how to solve one-step equations using the subtraction property of equality. The first step is to circle the variable and identify the operation being added or subtracted to it. The next step is to use the inverse operation, in this case, subtraction, to isolate the variable. By subtracting the same number from both sides of the equation, the variable becomes isolated and the solution can be found. This method can be used for any one-step equation involving addition or subtraction.

Lesson Description:

How to solve a one step equation using the subtraction property of equality

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Questions answered by this video:
  • How do you solve a one-step equation by subtracting?
  • What is the subtraction property of equality?
  • How do you solve -2 = l + 5 using the subtraction property of equality?
  • How do you isolate a variable in a one-step equation?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how to solve a very basic one-step equation by using the subtraction property of equality. The idea of getting the variable by itself is discussed and explained along with using subtraction to solve.