Answer: x = 20
Step-by-step explanation:
We know that the sum of the angles in a triangle is 180 degrees.
Therefore, we can set up an equation:
46 + 71 + 4x - 17 = 180
We can combine like terms:
4x +100 = 180
Subtract 100 from both sides:
4x = 80
Divide both sides by 4:
x = 20
