I don't see any numbers to set up in an equation or letters
Answer is 30
you can use PEMDAS to help you on further questions like this
P-Parenthesis
E-Exponents
M/D-Multiplication/Division solved in order from left to right
A/S-Addition/Subttaction solved in order from left to right
Point slope and it would be y=2x-5
Answer: Conjugates
Step-by-step explanation:
We'll have to repeatedly square both sides of the equation, in order to get rid of the square roots. Squaring a first time yields

Move the 19 to the right hand side:

And square again:

Square one last time:

Let's check the solutions: all these squaring might have created external solutions:

So,
is a feasible solution.