Geometry

Question Analysis:
This problem involves solving a basic algebraic equation using a two-column proof, which requires each step to be justified with a reason.
The focus is on recognizing the correct step when isolating x.

Key Concept Explanation:
Subtraction Property of Equality: If the same number is subtracted from both sides of an equation, the equation remains balanced.
Division Property of Equality: If both sides of an equation are divided by the same nonzero number, the equation remains valid

Step-by-Step Solution:
Start with the given equation:
Subtract 5 from both sides (using the Subtraction Property of Equality):


Divide both sides by 2 (using the Division Property of Equality):

Option Analysis:
(A)

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