Answer:
x = -12
Step-by-step explanation:
2(x+1)-3x=14 (expand parenthesis i.e PEDMAS rule)
2x + 2 - 3x = 14 (bring all x terms to one side and numbers to the other; subtract 2 from both sides)
2x - 3x = 14 - 2 (evaluate each side)
-x = 12 (multiply both sides by -1)
x = -12
Answer:
E
Step-by-step explanation:
The angle subtended by a diameter is always right. That's Thales' Theorem, one of the first in geometry. We conclude y=90°.
The angle subtended by an arc is half the arc length, so z=50°.
The angles in a triangle add to 180°, so x = 180° - y - z = 40°.
Answer: x=40°, y=90°, z=50°
