The given expressions represent two pairs of linear equations:
1. 2x + 20 = 4y + 10
2. 4y + 10 = 6y - 30
Let's solve for x and y:
**For equation 1:**
2x + 20 = 4y + 10
Subtract 10 from both sides:
2x + 10 = 4y
Divide both sides by 2:
x + 5 = 2y
Now, we have an expression for x in terms of y: x = 2y - 5
**For equation 2:**
4y + 10 = 6y - 30
Add 30 to both sides:
4y + 40 = 6y
Subtract 4y from both sides:
40 = 2y
Divide both sides by 2:
y = 20
Now that we have the value of y, we can find the value of x using the expression from equation 1:
x = 2y - 5
x = 2(20) - 5
x = 40 - 5
x = 35
So, the values of x and y are:
x = 35
y = 20
Now, let's find the dimensions of each window. It's not clear how these expressions relate to window dimensions. If you can provide more information about the context or equations that describe the dimensions, I can help you further.