Math 7 Ch 3 Review

Like/Unlike Terms

100

What does the phrase "like terms" mean

Terms that have the same variable and power

200

What does the phrase "unlike" terms mean

Terms that have different variables and powers

300

What is a "constant" 

A value that does not have a variable with it

400

Identify the like terms in this expression: 

x - 4 + 3 - 5x²

Like: x

Like: 4, 3

Like: 5x²

500

Identify the like terms in this expression: 

3 - x + x² - 3x

Like: 3

Like: x, 3x

Like: x²

Simplify

100

-10y + 15y 

5y

200

2.4g - 2.4g - 9.8g

-9.8g

300

14 - 3z + 8 + z

22-2z

400

2.5x + 4.3x - 5

6.8x - 5

500

2s - 9s + 8t - t

-7s + 7t

Adding Linear Equations

100

(x-2) + (3x + 8) 

4x + 6

200

(-4y + 3) + (11y - 5) 

7y - 2

300

(-8z + 4) + (8z - 7) 

-3

400

(4.5 - n) + (6.5 - 10n) 

11 - 11n

500

(6.7x - 4) + (-.9x + 5) 

5.8x + 1

Subtracting Linear Equations

100

(5x + 6) - (-x + 6) 

6x

200

(7y + 5) - (8y - 6) 

-y + 11

300

(m - 3) - (-m + 12) 

2m - 15

400

(-2c + 5) - (6.3c + 20) 

-8.3c - 15

500

(-4m - 6) - (-6m + 7) 

2m - 13

Factoring Expressions

100

Factor 24x - 18 using the GCF

6(4x - 3) 

200

Factor 15x + 25 using the GCF

5(3x + 5) 

300

Factor 4y - 20 using the GCF

4(y - 5) 

400

Factor 36c + 24d using the GCF

6(6c + 4d) 

500

Factor -2 out of -4p + 10

-2(2p - 5)