Kira solved the equation in the following way. 7 2 − 2x = 11 2 7 2 − 7 2 − 2x = 11 2 − 7 2 −2x ÷ −2 = 4 2 ÷ − 2 x = −1 Describe the properties of equality that Kira used. The first step is to use the property of equality to combine the constant terms. The second step is to use the property of equality to isolate the variable.

Respuesta :

Answer:

the first step is to use the

✔ Subtraction

property of equality to combine the constant terms.

The second step is to use the

✔ Division

property of equality to isolate the variable

Step-by-step explanation:

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The first and second steps used by Kira to solve the equation are;

Subtraction Property of Equality and Division Property of Equality

Understanding Properties of Equality

What Kira wants to solve is;

72 - 2x = 11

The first step is to use the Subtraction property of equality to combine the constant terms. Thus;

72 - 2x - 72 = 11 - 72

-2x = -61

The second step is to use the Division property of equality to isolate the variable to get;

-2x/-2 = -61/-2

x = 61/2

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