Algebra: simplify the expression
Angles
Find the Missing Angle
Equations: solve for x
Warmups
100
−4 + 7(1 − 3m)
3 - 21m
100
Sum of complementary angles(272).jpg)
90 Degrees
100
Write the equation to find x.
x+37=90
100
3x+7=13
x=2
100
How many schooldays are left?
1
200
10 − 5(9n − 9)
55 - 45n
200
Sum of supplementary angles
180 Degrees
200
Write the equation to find x.
28o + xo + 73o = 180o
200
x=8
200
A man was outside taking a walk when it started to rain. The man didn’t have an umbrella, and he wasn’t wearing a hat. His clothes got soaked, yet not a single hair on his head got wet. How could this happen?
He was bald!
300
- (5a – 7b + 9)
-5a + 7b - 9
300
In angles formed with parallel lines and a transversal how many angles of different sizes are there?
Two
300
Show the equation to find y.
5y - 4 = 180-3y
300
3x + 5 = -16
x= -7
300
David’s parents have three sons: Snap, Crackle, and what’s the name of the third son?
David
400
7x – (4x + 6)
3x - 6
400
Vertically opposite angles are always __________
congruent (the same)
400
What is the size of angle a?
a= 69°
400
−8−2m=12
x=-10
400
You’re running a race and at the very end, you pass the person in 2nd place. What place did you finish the race in?
You finished in 2nd place.
500
−7(n + 3) − 8(1 + 8n)
-71n - 29
500
How do we set up an equation to solve this?
x+16=4x -5
500
Give a valid equation from this diagram.
9x+12=4y-10
OR
3x+4y-10=180
500
5 + 14x = 9x - 5
x=-2
500
Find the value of each angle
x= 30
y= 15
z= 150