Answer:
3) x = 50, vertical angles.
4) x = 20, supplementary angles
5) x = 14, complimentary angles
Step-by-step explanation:
3)
vertical angles.
vertical angles are equal.
so, you can make this equation:
67 = x + 17
subtract 17 from both sides of the equation
67 - 17 = x + 17 - 17
67 - 17 = x
50 = x
4)
supplementary angles
supplementary angles add up to 180
so, you can make this equation:
7x + 40 = 180
subtract 40 from both sides of the equation
7x + 40 - 40 = 180 - 40
7x = 180 - 40
7x = 140
divide both sides by 7
7x/7 = 140/7
x = 140/7
x = 20
5)
complimentary angles
complimentary angles add up to 90
so, you can make this equation:
4x + 34 = 90
subtract 34 from both sides of the equation
4x + 34 - 34 = 90 - 34
4x = 90 - 34
4x = 56
divide both sides by 4
4x/4 = 56/4
x = 56/4
x = 14