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erastova [34]
3 years ago
14

Select the action you would use to solve x-3=12. Then select the property that justifies the action

Mathematics
1 answer:
lukranit [14]3 years ago
5 0

The right options are A and D.


Explanation:


1. Option A.

<u>The action is:</u> <em>Add 3 to both sides</em>. This means that we need to do the following operation:

x - 3 = 12

∴ x - 3 + 3 = 12 + 3

∴ x = 15

So, the solution of this problem is x = 15.


2. Option D.

<u>The property is:</u> <em>Addition property of equality. </em>This is the property we are chosen because we need to isolate the variable x. To do that, we need to add a number of each side of the equation to find our goal and this property allows us to get our goal.

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