Integers
Combine Like Terms
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Solving 2 step equations
Angle Relationships
100
14 - 16 + 20
18
~~~~
-2 + 20
100
2 - 3b + 5b
2 + 2b
100
5(3k + 10)
15k + 50
100
2x + 4x = 180
x = 30
6x = 180
x/6 = 180/6
100
A pair of angles that add to 180 are called
(a) Complementary
(b) adjacent
(c) Supplementary
(c) Supplementary
200
-7 (4 - 5)
7
200
4m - 7m + 14
-3m + 14
or 14 - 3m
200
-4 ( 3 + 2x)
-12 - 8x
~~~~~~~~~~
-4 (3) + -4 (2x)
-12 + - 8x
-12 - 8x
200
130 + x = 180
x = 50
200
A pair of angles that add to 90 degrees are called
(a) Complementary
(b) Vertical
(c) Supplementary
Complementary
300
-4 ( 6 + 4)
-40
300
4 + r + 6r + 12 + 3r
16 + 10r
300
-10 ( 3y + 4)
-30y - 40
-10 (3y) + -10 (4)
-30y - 40
300
50 + x = 90
x = 40
300
x = 40
x+15+35 = 90
x + 50 = 90
x = 40
400
25 + 50 + 25 - 25 - 25
50
400
3 - 7y + 9 - 2y
12 - 9y
400
8( -2 + 3y) + 10y
-16 + 34y
~~~~~~~~~
-16 + 24y + 10y
-16 + 34y
400
30 + x = 90
x = 60
400
Pictured here are what kind of angles?(a) complementary, (b) supplementary (c) vertical
Vertical angles
500
-3 ( 5 + 3)
-24
500
-4 + 8m + 10 - 2m
6 + 6m
500
8 + 6(2s - 5)
-22 + 12s
~~~~~~~~~~~
8 + 6(2s - 5)
8 + 6(2s) +6 (-5)
8 + 12s - 30
8-30 + 12s
-22 + 12s
500
12x + 6x = 180
x = 10
18x = 180
500
Solve for x
x = 110 because vertical angles are equal