Step-by-step explanations:
Hi there! I'm glad I was able to help you out again!
Question 1: We are given that

All we have to do to solve for the unknown variable is subtract 10 from both sides of the equation, to keep things in place.

We are now left with the fact that
, but just in case you are skeptical about this answer, we can always plug in our new values to the equation by replacing the variable with our answer:

_____________________________________________________
Question 2: We are given that

To solve for x on this one, all we have to do is add 3 to both sides of the equation, in order to keep things neat and clean.

Like before, in case you're confused and would like to check your answer, all you have to do is rewrite the equation as shown:

You can always use a calculator if you're stuck!
I hope this helped you! :)