What property of equality is displayed in step 3 in the solving of 9m+4−7m=5m+73?

Step 1:

9m+4−7m=5m+73

9m−7m+4=5m+73

Step 2:

2m+4=5m+73

3(2m+4)=(5m+73)3

Step 3:

6m+12=5m+7

6m+12−12=5m+7−12

Step 4:

6m=5m−5

6m−5m=5m−5m−5

m=−5

(1 point)
Responses

Addition Property of Equality
Addition Property of Equality

Subtraction Property of Equality
Subtraction Property of Equality

Division Property of Equality
Division Property of Equality

Multiplication Property of Equality
Multiplication Property of Equality

1 answer

In Step 3, the equation shows:

\( 6m + 12 - 12 = 5m + 7 - 12 \)

This operation involves subtracting 12 from both sides of the equation, which illustrates the principle that you can perform the same operation on both sides of an equation without changing the equality.

Thus, the property being used is the Subtraction Property of Equality.

So the correct response is:

Subtraction Property of Equality