Solving Using the Subtraction Property
To solve the equation , the objective is to isolate by reversing the addition of . Apply the Subtraction Property of Equality by subtracting from both sides:
The left side simplifies to because . The right side becomes . Therefore, .
To check, substitute into the original equation: , which simplifies to . This true statement confirms that is the correct solution.
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Ch.2 Solving Linear Equations and Inequalities - Elementary Algebra @ OpenStax
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