If angles of a quadrilateral are `x,x+3,x+8,x+9` ,find the value of x​

The measure of angle of a quadrilaterial are x, 2x, 3x and 4x. Find the value of x/(12^(@)) .

If 3% of x 9, Find the value of x.

If 3^(x + 2 ) = 9 , find the value of x

If x + 1/x = 9 , find the value of x- 1/x

The angles of a quadrilateral are (x+20, (x-20), (2x+5), (2x-5) . Find the value of x.

If x=-3/8 then find the value of 5-(-x)

If x=8, Find the value of 3sqrt(x)+x-5

Passage I: The angle of a quadrilateral are in the ratio 3:5:7:9. If measure of angles be (3x),(5x),(7x) and (9x), then the value of x is

If x - 2/x = 5 , find the value of x^3 - 8/x^3

The angles of quadrilateral are x-5^(@),x,x+5^(@),and x+10^(@) . Find the smallest angle of the quadrilateral.