Building My Own Equations
Inverse Operations
Equations!
System of Equations!
100
Express the following image as equations:
1. 2x + 4 = 18
2. 2x = 14
3. x = 7
100
What inverse operations undo what? Use the sentence stem "____________ is the inverse of ____________." You should have 4 answers.
Multiplication --> Division
Division --> Multiplication
Addition --> Subtraction
Subtraction --> Addition
100
solve the following equations:
4x = 16
x = 4
100
What are the three methods for solving systems of equations?
graphing, elimination, and substitution
200
Create an equation that represents the hanging shaped weights:
3s + 2t = s + 5t
200
What inverse operation is needed to solve the following:
4 + x = 8
subtraction
200
Solve for x
5x + 7 = 22
x = 3
200
Free points! I'm ready to go to bed.
You're welcome.
300
Build your own hanger of shapes that is balanced! Must include at least 3 shapes.
*Ms. W will decide*
300
Double points: The inverse of squaring something is:__________
Ex. 52
Square Root
300
Solve the following equation:
3x - 6 = 7x + 1
x = -7/4
300
Solve this system of equations:
x - 2y = 8 and x = 5 - y
(6, -1)
400
Find the weight of the square if a triangle is 3g and a circle is 6g.
Ms. W will draw the picture. They want me to pay :(
15/4 or 3.75 grams
400
What inverse operations are necessary to solve the following equation?
(1/3)x - 7 = 2
Addition and multiplication
400
For a science project, Sammy observed a chipmunk and a squirrel stashing acorns in holes. The chipmunk hid 3 acorns in each of the holes it dug. The squirrel hid 4 acorns in each of the holes it dug. They each hid the same number of acorns, although the squirrel needed 4 fewer holes. How many acorns did the chipmunk hide?
Teacher will reveal.
400
Solve this system of equations: 
Ms. W will show.
500
Find the weight of the pentagon if the triangle is 3 and the circle is 6
Ms. W will draw the picture They're trying to make me pay :(
Infinite solutions!
500
Model solving the following problem with inverse operations:
5 - 5x = 25
Steps should be subtract 5 from both sides and divide both sides by 5 to get x = -4.
500
Solve 2x – 2(3x – 2) = 2(x –2) + 20
x = -2
500
Under what circumstance would you use each method?
Graphing: just in general
substitution: when one equation can be easily manipulated to give what one variable equals
elimination: when one equation can be easily manipulated to eliminate one variable to show what it is equal to