Question

Please help mehhhhh!!!!!

Answer 1

x = 4

Explanation:

To begin, first find Angle SUT.

Knowing that SUH is a straight line, Angle SUT plus 100 degrees should equal 180 degrees. Angle SUT is 80 degrees.

The sum of all the degrees in a triangle is also 180 degrees.

SO

(4x + 4) + (21x - 4) + 80 = 180

25x + 80 = 180

25x = 100

x = 4