Find x if m<UKL = 13x-4, m<JKL = 20x+12, and m<JKU = 72

To find the value of x in this problem, we can set up an equation using the given angles and their measures.

We know that m<UKL = 13x - 4, m<JKL = 20x + 12, and m<JKU = 72.

Since angles UKL and JKL form a straight line, their sum is equal to 180 degrees. Therefore, we can write the equation:

m<UKL + m<JKL = 180

Substituting the given angle measures:

(13x - 4) + (20x + 12) = 180

Combine like terms:

33x + 8 = 180

Subtract 8 from both sides:

33x = 172

Divide by 33:

x = 172/33

The value of x is approximately 5.212.