SF- PreAlgebra- Chapter 2- Part 1 Review

Combining Like Terms

100

9c - 4c + 2c 

7c

200

7(3s) + 3(s -2) 

24s - 6

300

(-5y + 3x)(-4) + (-y) + x 

19y - 11x

400

-4(-7y - 6)

28y + 24

500

6(x + 3z) - 15x 

-9x + 18z

Properties

100

a + b = b + a 

Commutative Property of Addition 

200

(xy)z = x(yz) 

Associative Property of Multiplication

300

13 x 1 = 13

Identity Property of Multiplication

400

62 + 0 = 62 

Identity Property of Addition 

500

4 x 3 = 3 x 4 

Commutative Property of Multiplication 

Adding & Subtracting Equations

100

X + (-12) = 12

24

200

m + 16 = 5 

-11

300

-3 = 15 + c 

-18 

400

14 = m - (-9) 

5

500

x - 98 = -34

64

Multiplying & Dividing Equations

100

n/-6 = 12

-72 

200

7r = -84 

-12 

300

g/-7=-6

42

400

-3d = -54 

d = 18 

500

n/-5 = -24

120 

Variable Equation Word Problems True, False, or Open

100

The product of 4 and the opposite of 7 is equal to -28

4(-7) = -28 

True 

200

Two fifths of a number x is 54. 

2/5x = 54

300

2 less than the product of 7 and 3 = 17 

7(3) - 2 = 17 

False

400

-96 divided by -8 is equal to -12. 

-96/-8 = -12 false

500

The sum of a number x and 36 is equal to 75. 

x + 36 = 75 

Open