Answer: x = 4
Explanation:
The little box in this angle represents 90 degrees, so we can set up an equation and solve.
Given:
12x + 5 = 90 - 37
Subtract:
12x + 5 = 53
Subtract 5 from both sides of the equation:
12x = 48
Divide both sides of the equation by 12:
x = 4