Question

Which property of equality justifies the step for solving the equation that is displayed?

3z2−5=10

3z2−5+5=10+5

3z2=15

(1 point)
Responses

Addition Property of Equality

Division Property of Equality

Multiplication Property of Equality

Subtraction Property of Equality

1 answer

The property of equality that justifies the step from \( 3z^2 - 5 = 10 \) to \( 3z^2 - 5 + 5 = 10 + 5 \) is the Addition Property of Equality.

This property states that you can add the same value to both sides of an equation without changing the equality. In this case, adding 5 to both sides of the equation allows you to isolate the term involving \( z \).

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