What’s the value of X?

The value of x is a constant number.The letter "x" is often used in algebra to mean a a value that is not yet known.It is called "variable" or sometimes an "unknown" so no one can decide the fix value of x because it is a variable.

137

Step-by-step explanation:

Sum of opposite angles in a quadrilateral embedded in a circle=180

43+x=180

X=180-43

X=137

Ithink it is 7. 16

What is the inequality?