What is the solution to the system of equations?
y = x +3
X=-2

(-2, 11/6)

Step-by-step explanation:

You appear to be missing side A. Here is the equation for that:

a = √(c² - b²)

So do c squared (13 squared) - b squared (12 squared)

= 25

However, the answer is not c squared - b squared, but the SQUARE ROOT of c squared - b squared.

In other words, we want the square root of 25, so your answer is...