Respuesta :
This step works because of the addition of property equality.
What is adding the property of equality?
The addition property of equality tells us that adding the identical wide variety to each facet of an equation offers us an equal equation. If a−b=c, then a−b+b=c+b,or a=c+b. The same goes with the subtraction belongings of equality
What are the 3 properties of addition?
- Commutative property of addition.
- Associative property of addition.
- Identity property of addition.
Learn more about the addition of property equality here https://brainly.com/question/24214650
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