<u><em>Hi there! </em></u>
<u><em>Answer:</em></u>
<u><em>C. Addition property of equality</em></u>
Step-by-step explanation:
Addition property of equality: a+b=a+c
First, you add by 7 from both sides of an equation.
Then, you add by the numbers from left to right.
<u><em>Therefore, the final answer is x=17.</em></u>
I hope this helps you!
Have a nice day! :)
:D
-Charlie
Thank you so much! :)
:D