Question 2: The answer is 21 The two angles are vertically opposite, which makes them equal and also means we can make an equation: 4x - 4 = 3x + 17 - 3x x - 4 = 14 + 4 x = 21
Question 3: The answer is 23 Again, the angles are vertically opposite, so we can make them equal each other: 5x - 53 = 3x - 7 - 3x 2x - 53 = -7 + 53 2x = 46 ÷ 2 x = 23
