Grade 7 Algebra Test Prep

Combining Like Terms

100

3x + 2x + 6x

11x

200

4a + 7 + 2a + 11

6a + 18

300

5b + 3b - 2 - 7

8b - 9

400

2x + 4 + 3x - 6 + 8x + 4

13x + 2

500

6y - 2 - 3y - 5 - y - 2y + 2 - 7 + 2y

2y - 12

Evaluating Expressions

100

Evaluate 3x if x = 4

12

200

2a + 5 if a = 3

11 

300

4b - 2 if b = 5

18

400

3x + 2y if x = 2 and y = 4 

14

500

2a + 3b - c if a = 1, b = 2 and c = 3

5 

One Step Equations

100

x - 9 = -4 

x = 5 

200

-3x = 21 

x = -7 

300

3x = 18 

x = 6

400

4 = x - 8 

x = 12

500

-2x = 14

x = -7

Two Step Equations

100

5x + 5 = 15

x = 2 

200

5x - 7 = 18

x = 5 

300

-2x + 6 = 14

x = -4

400

5x + 7 = 27

x = 4 

500

4x - 6 = 18

x = 6

Find the Mistake

100

2x + 3x = 5 

What is the mistake? 

They forgot the variable. It should be 5x 

200

x + 6 = 10 

x = 16

What went wrong? 

the added instead of subtracting 

300

3x = 12 

x = 12

What is the mistake? 

They forgot to divide by 3 

400

2x + 5 = 15

2x = 10

x = 10

What is the mistake?

they forgot to divide by 2 

500

4x - 4 = 20

4x = 16

x = 16

What went wrong? 

They forgot to divide 16 by 4