![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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Key Concept \ | \
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Subtraction Property of Equality \ | \
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For any real number a, b, c, if a = b then a – c = b – c \ | \
The given equation is 23 = v + 5
\6 – 2 = x + 2 – 2 (Subtract 2 from each side)
\6 – 2 = x + 0 (Additive inverse property: 2 – 2 = 0)
\4 = x (Subtract: 6 – 2 = 4)
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Verify the solution:
\Substitute x value in original equation.
\6 = 4 + 2
\6 = 6 (Add: 4 + 2 = 6)
\The solution is true.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The value of x = 4 .