Terms
Modeling
One-Step Equations
Two-Step Equations
Solving
100

In the expression 2x +3, the variable is:

x

100

Which expression is modeled by the picture?


2x+4

100

Which value of x will keep the scale balanced?

3

100
What is the first step to solve the equation


14x - 21 = 35?

Add 21 to both sides

100

What is the solution to 

x/3 = -4?

x = -12

200

The numerical coefficient in the expression 5y-4 is:

5

200

Model 4x-3 using cups and counters

200

How many counters do we put in the cup to make the equation true?


8

200

The first step in solving 4x + 5 = 21 would be subtracting 5 from both sides. What is the second step?

Divide both sides by 4

200

Solve 4k - 4 = 16

k = 5

300

What is the constant term in this expression:

7r-6

-6

300

Which equation is represented by the algebra tiles?

2x - 3 = 5

300

Is x=5 a solution to the equation 37 - x = 42?

No! x = -5 is the solution

37 - (-5)
=37 + (+5)
=42

300

What is the solution to the equation represented by the model below?


x = 3

300

Solve 4 + 9r = 31

r = 3

400

A mathematical statement with two expressions that have the same value is called a/an

Equation

400

Which equation is represented by the tiles?


3x +2 = 11

400
What is the solution to the equation r -10 = 14?

r = 24

400

What is the solution to 

3r - 7 = 20?

r = 9

400

Solve x/3 - 2 = 5

x = 21

500

An operation that undoes another operation is called a/an:

Opposite Operation

500

What is the value of 'd' in the equation above?

d = 7

500

What is the solution to the equation x/7 = 2?

x = 14

500

Is x = 6 a solution to the equation 

8x + 8 = 25?

No! Replace x with 6 to get:

8(6) + 8
=48 + 8
=56

500

Dean is 5 years less than twice Terry's age. If Terry is 22, how old is Dean? Write an equation and solve.

Use 'd' to represent Dean and 't' for Terry

d = 2t - 5
d = 2(22) - 5
d = 44 - 5
d = 39