1) What's the Story?!
2) Graphiti
3) The Scrubstitution Substitution Institution
4) Don't Hate. Eliminate.
5) Check that Work!
100

There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal are there?


Ee aye. Ee aye oh.

What is 6 chickens and 7 pigs?

100
By graphing, the solution to the system 

y = x 

y = -x

What is (0,0) ?
100
The solution to the system 

x + y = 2 

y = 3

What is (-1,3) ?
100
The solution to the system 


 x + 5y = 12 

-x +y = 0

What is (2,2) ?
100
(4,5) is the solution to the following system?
4x - y = 12
x + 6y = 13
What is, NO ?
200

Find the value of two numbers if their sum is 12 and their difference is 4.

What is (8,4) ?

200
By graphing, the solution to the system 

y = 3x - 4 

y = -3x + 2

What is (1,-1)?
200

The solution to the system 

2y - x = 4 

10y - x = 20

What is (4,2) ?
200
The solution to the system 

-4x - 2y = -12 

4x + 8y = -24

What is (6,-6)?
200
(0,-4) the solution to the system
y = -20x + 1
20x + y = 6
What is No?
300

Abby went to Yellowstone National Park one day this summer. All of the people at the park were either hiking or bike riding. There were 178 more hikers than bike riders. If there were a total of 676 people at the park, how many were hiking and how many were riding their bikes?

What is 427 hikers and 249 bikers ?

300
By graphing, the solution to the system 

y = (1/3)x + 2 

y = -x - 2

What is (-3,1) ?
300
The solution to the system 

y = 6x - 11 

-2x - 3y = -7

What is (2,1) ?
300
The solution to the system 

5x + y = 9 

10x - 7y = -18

What is (1,4)?
300
(-2,1) is a solution to the system 

 6x - 3y = -15 

2x + y = -3

What is Yes?
400

Tyler had a summer lemonade stand where he sold small cups of lemonade for $1.25 and large cups for $2.50. If Tyler sold a total of 155 cups of lemonade and collected a total of $265, how many cups of each type did he sell?

What is 98 small cups and 57 large cups of lemonade?

400
By graphing, the solution to the system 

y = -1.5x - 4 

y = 0.5x + 4

What is (-4,2) ?
400
The solution to the system 

-3x + 3y = 4 

-x + y = 3

What is no solution?
400
The solution to the system 

-4x + 9y = 9 

x = 3y - 6

What is (9,5)?
400
"No solution" describes the solution to the following system
y = 3x + 4
y = -x - 4


What is False?
500

Taitum bought 6 new Soundcloud mixtapes and 2 old, closeout, not-fresh Soundcloud mixtapes for $127.92. At the same prices, Julien bought 3 new Soundcloud mixtapes and 8 old, closeout, not-fresh Soundcloud mixtapes for $133.89. Find the cost of buying a single old, not-fresh, geezery, non-fleek Soundcloud mixtape.

What is $9.99 ?

500
By graphing, the solution to the system 

y = (5/4)x - 2 

y = 1.25x -1

What is no solution?
500

The solution to the system 

-5x - 8y = 17 

2x - 7y = -17

What is (-5,1) ?

500
The solution to the system 

2x + 8y = 6 

-5x - 20y = -15

What is infinite number of solutions?
500
(-3,-1) is the solution to
y=(4/3)x + 3
(2/3)x + y = -3
What is (-3,-1)?
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