REI B.3 Solving Linear Equations Review

Level 1: One-Step Equations

100

p + 7 = = 20

p = 13

200

x - 10 = 17

x = 27

300

z - 17 = -8

z = 9

400

-14w = -28

w = 2

500

z/9 = -9

z = -81

Level 2: Two-Step Equations

100

5p - 8 =17

p = 5

200

2k + 7 = 29

k = 11

300

9r + 4 = -23

r = -3

400

-3p - 9 = -30

p = 7

500

9j + 4 = 14 

(Leave answer as a fraction)

j = 10/9

Level 3: Variables on Both Sides

100

-4j - 3j = 23 - 9

j = -2

200

-6x + 21 = -3x

x = 7 

300

-2w + -9w = -25 - 30

w = 5

400

-2x - 21 = -4x - 7

x = 7

500

-3c - 7 = 6c + 74

c = -9

Level 4: Multiply it Out

100

-74 + 19 = 3(7 + 3p) - 4

p = -8

200

-9(-9a - 4) = -450

a = 6

300

-9(-4 + 9y) + 2 = -448

y = 6

400

-8b + 87 = -9b + 3(9 + 7b)

b =3

500

4p - 121 = -5 + 4(5p - 9)

p = -5