Unit 2B- Equations

Word Phrases

100

Write an equation that represents: 

ten decreased by twice a number equals six

10 - 2x = 6

200

The quotient of a number and five

x/5

300

Write an equation that represents: 

nine more than half a number equals negative two

x/2 + 9 = -2

400

The difference between thrice the number and twenty-seven

3x - 27

500

The product of two and the sum of x and seven

2(x + 7)

One-Step Equations

100

Solve for x:

2x = 14

x = 7

200

Solve for x:

x - 3 = 12

x = 15

300

Solve for x:

−4x = 20

x = -5

400

1/2x = 1

x = 2

500

2/3x =4

x = 6

Two-Step Equations

100

Solve for n:

5n − 5 =40

n = 9

200

Solve for x:

3x + 12 = 24

x = 4

300

Solve for b:

2b + 5 = 11

b = 3

400

Solve for c:

3c + 5 = -16

c = -7

500

Solve for p:

p/2 - 2 = -7

-10

Multi-Step Equations

100

What is the first step to solving the following equation?

5x - 3 + x = 3

Combining "Like" Terms

200

What is the first step in solving for x in the following equation? (BE SPECIFIC!)

6(x + 8) = 24

Distribute the 6 times x and 6 times 8.

300

What are the first TWO steps in the following equation? (BE SPECIFIC!)

2 + 4(1 + 3x) = 54

First distribute 4 times 1 and 4 times 3x, then combine "like" terms.

400

Solve for x in the equation:

2(3x + 2) + 4 = 26

x = 3

500

Solve for x in the following equation:

4(x − 3) − 2 = 18

x = 8

Words in Math

100

What is 5 in the following equation?

5x - 8 = 12

Coefficient

200

What is the x in the following expression?

2x + 15

Variable

300

What is 12 in the following equation?

5x - 12 = 13

Constant

400

What is the word used to describe 2x, 4 and 16 in the following equation?

2x + 4 = 16

Term

500

What is the word used to describe the 2 in the following equation?

x² + 14 = 23

Exponent