Question

The value of x is ?

Answer 1

Answer:

3 degrees :)

Step-by-step explanation:

Answer 2

Answer:

3 degrees

Step-by-step explanation:

Recall that the sum of the interior angles of a triangle is always 180 degrees.  Here two interior angles are shown  [ 25x and (57 + x) ], and the third can be calculated [180 - 45x].

Summing these up, we get (25x) + (57 + x) + (180 - 45x), or -20 - 19x, which we set equal to 180:  

(25x) + (57 + x) + (180 - 45x) = 180.  Subtract 180 from both sides, obtaining:

25x + 57 + x - 45x = 0.  Then 26x - 45x = -57, or x = 3.