The image depicts a triangle with given angle measures in terms of $x$ and $y$. Let's break down the problem:

• The sum of angles in any triangle is always $180^\circ$.
• One angle is given as $(3x - 4)^\circ$, and it is marked as a right angle, meaning it's $90^\circ$.
• The other two angles are:
  • $(7y - 20)^\circ$
  • $(5x - 38)^\circ$

Step 1: Use the angle sum property of a triangle

The sum of all three angles in the triangle is $180^\circ$. We have:

$(3x - 4)^\circ + (7y - 20)^\circ + (5x - 38)^\circ = 180^\circ$

Given that the first angle is $90^\circ$ (since it is a right angle), we substitute that into the equation:

$90^\circ + (7y - 20)^\circ + (5x - 38)^\circ = 180^\circ$

Step 2: Simplify the equation

First, simplify the right-hand side by subtracting $90^\circ$:

$(7y - 20)^\circ + (5x - 38)^\circ = 90^\circ$

Now, expand both terms:

$7y - 20 + 5x - 38 = 90$

Simplify further:

$7y + 5x - 58 = 90$

Now, add 58 to both sides:

$7y + 5x = 148$

Step 3: Solve for $x$ and $y$

We now have one equation:

$7y + 5x = 148$

To proceed, we need another equation, possibly based on additional relationships within the problem (e.g., if there are any conditions or more given information). If no more conditions are provided, the system is underdetermined, meaning there isn't a unique solution for both $x$ and $y$, only a relationship between them.

Would you like more details or clarification on a specific part of this explanation?

Here are 5 follow-up questions to explore:

1. How do you calculate the sum of interior angles in any triangle?
2. What does the right angle in the triangle tell us about the solution?
3. How can we handle systems of equations like this if we are given two unknowns?
4. Can we assume anything about the values of $x$ or $y$ to simplify solving?
5. How does solving for one variable help in solving the system?

Tip: Always check if any constraints or extra conditions are implied, as they can help you solve for all variables!