Equations and Inequalities Review

Expressions

100

4 more than a number.

x + 4

or

4 + x

200

7 less than a number

x - 7

300

Twice a number, x

2x

400

Half a number, x

x/2

Solving Equations

100

Solving Equations

Solve for x. 

x + 3 = 7

What is: 

x = 4

200

Solving Equations

Solve for x.

2x = 8

What is: 

x = 4

300

Solving Equations

Solve for x. 

9 + x = 15

What is: 

x = 6

400

Solve for v. 

9v = 27

v= 3

Solving Inequalities

100

Solving Inequalities

Solve for c. 

c - 11 > 22

What is: 

c < 33

200

What are two possible solutions for x?

2x < 6

x: 0,1, 2

300

Write an inequality

S is at most 55

s <= 55

400

Write an Inequality 

Brianna, who is not yet 21 years old, is 2 years older than Lily.

x + 2 < 21

Order of Operations

100

6+8(3+7)

86

200

12x9+25

133

300

7+9²÷9

16

400

3²+2(8x2)

41