Answer:
x = 7, y = 16
Explanation:
Looking at the image we can conclude the following
Sides with measurements y - 4 and x + 5 are equal
So we get the equation y - 4 = x + 5
The sides with measurements 2x + 5 and x + 12 are equal\
We get another equation 2x + 5 = x + 12
Let's take the second equation which is in terms of x only and solve for x
2x + 5 = x + 12
Subtract x from both sides
2x - x + 5 = x - x + 12
==> x + 5 = 12
Subtract 5 from both sides:
x + 5 - 5 = 12 - 5
x = 7
Now that we know the value of x, we can substitute this value into the first equation y - 4 = x + 5
==> y - 4 = 7 + 5
y - 4 = 12
Add 4 to both sides:
y - 4 + 4 = 12 + 4
y = 16