Question

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

that justifies that action.
Select all that apply.
A. Action: Add 3 to both sides.
B. Action: Multiply both sides by 3.
C. Action: Subtract 3 from both sides.
D. Property: Addition property of equality
E. Property: Multiplication property of equality
OF. Property: Subtraction property of equality
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Answer 1

Add 3 to both sides

Property: Addition property of equality

Explanation:

Action: Add 3 to both sides.

⇒ x - 3 = 12

(cancel out)+ 3 + 3

------------------------ -----

x = 15

The property used:

• Addition property of equality.

→ equation is true and the same #is added to each side the resulting equation is true. for any #s a,b,c,if a=b then a+c=b+c.